Thought I'd share this. I decided to request a quote from Just Dashes using their website, rather than speaking to someone on the phone. I wanted my request and their response in writing.

http://justdashes.com/Map.htm

My Quote Request:

Hello,
I'd like to get a quote to have you do a 1970 Dodge Challenger dash
pad (black, 3-speaker, Non-A/C).
I currently have several E-body dash pad cores, and would prefer to
bring you the one that offers me the best price for my need. I live in
SoCal, so I can drop the core off at your shop in Van Nuys.
- What is the price for what I need?
- What (if any) are the additional charges if I bring you a 'Cuda dash core?
- What (if any) are the additional charges if I bring you a later year
model core
- What (if any) are the additional charges if I bring you a dash core
that is NON-3 speaker (single speaker), and/or came out of an A/C car?
- Do you require a rust-free dash core?
- What is your process? Do you remove ALL the old foam, or do you
simply fill the deteriorated/damaged foam areas with new foam?
- Would a new (chrome) '70 Challenger script emblem be attached to the
dash pad, and be included in the price you give me?
- How is the emblem attached to the dash pad; is it glued on, or is
the emblem pinned with retainers on the back-side?
- Do you provide provisions for the dash VIN tag to be riveted on, or
do I need to bring you the VIN tag from the car?
- Is there a guarantee on the workmanship? I need this to fit
(perfectly) and as well as the dash pads fit from the factory.
- How close will the vinyl's grain pattern be to the grain pattern of
the vinyl on an original dash pad?
- Regarding the outboard/side speaker grills: I have read on some of
the Mopar forum sites (and message-boards) that only the B/L B/R
speaker grills will work on your E-body dash pads. I have both B/L-R
and J/L-R grills. Will the J/L-R (’70 Challenger ONLY) grills fit
properly on the '70 Challenger dash pad you do for me?
- Do you buy dash cores? I have several E-body cores ranging in
condition (from bare metal steel to complete), and from both 'Cuda and
Challenger, 1970-74, A/C & Non-A/C, 3-speaker & single (center)
speaker.
I look forward to your response.
Best regards

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Just Dashes response:

Hi,
You certainly were thorough in your inquiry. I'll try to help you out as much as I can. First, I will say that we don't restore cores from other cars to go into a 1970 Dodge Challenger. For that car, we do a complete restoration. You will need to send the original dash into us
and we will do a complete reconstruction off your original dash frame. We strip off most of the old foam during the repair, but we leave what we need for the general profile of the dash pad. We work off of your original part to ensure that when you go to put it back in your car, you know it's going to fit. We do require the dash core you send in to be rust-free for the best results. IF you'd like your Challenger emblem re-chromed, we provide that service at an additional cost. Your VIN tag should come with the dash and we will remove and re-install it here at our shop. As for the fit of the dash, it should fit just like new. We stand by our product, and if you experience any problems, or have issues with the final product, we will work to fix the issue to the best of our ability. That being said, we do make a quality product that will look like new when we're through with it. The vinyl we use
on the dash is the same style used in the factory. However, your other interior parts may have faded, so we do recommend getting all of your
corresponding parts restored simultaneously for the most seamless transformation. We recommend using all of the original parts for your restoration, so please send in your original speakers for the restoration process. Our current turnaround time is about 10 weeks from the time we receive your part.
Send to: Just Dashes
5941 Lemona Ave.
Van Nuys, CA 91411

Cost:
$1,100 - Dash Pad (includes just dashes repro center speaker grill)
$150 - Foam Work (if the dash is bare metal)
$600-800 - Dash Carrier (Big Metal Frame Under Dash)
~$1250 - Instrument Cluster
~$450 -Bezel
$190 - Front and Rear Door Panels (each)
$450 - Rear Convertible Panels (each)
$150 - Weather Trim (for panels)
$120 - Kick Panels (each)
$150 - Seat Backs (each)
$500 - Black Vinyl Bezel (send control panel)
$350 - Hydrodipped Pattern ($200 to match control panel)
$150 - Black Texture Spray ($100 to match control)
+ Shipping

This price includes that restoration of the dash pad in black. For any
other color, you can add $100-$150 depending on the color. I've
attached an order form for your convenience. Let me know if you need
anything else.

Thanks,
Jason
Just Dashes, Inc.
(800) 247-3274
Just Dashes.com