Some more details:

These are equal length with 4-2-1 collectors that are slip fit
The PS has a slip fit tube, I have considered using a sleeve clamp here to guarantee no leaks
If I were to do it again, I would buy them uncoated, work out your install method to identify ways to minimize scratching up the coating
At this step you may want to heat the tubes to gain socket clearance on the header bolts
Your truck will demand increased amount of blood to get this project completed.
Enjoy your new found curse words.

The MP R/T headers were mid-length. I think they were the Spin-Tech brand.
There also were shorty headers called Stan's

If you have questions, feel free to ask