I doubt you'll need an accumulator. It will be hard to find a nice road racing pan for a mopar. I'd think a nice 6qt pan with some trap doors would work well enough.
The Milodon pans are pretty nice. They are darn near a custom piece with an off the shelf price.
I've done that on several cars. Even if you don't have a welder, if you trim up a piece of steel sheet fromteh hardware store and have it welded in at the local shop, you are talking about a less than $20 modification to ensure the pick up stays covered.
