Projects 1951 Mercury Chassis Swap

Can anyone tell me what is the best late model chassis to use for a 1951 Mercury? I am not really interested in a front clip swap only.

 

I've seen a few different cars listed, late 80's town car, late 60's 4 dr Lemans, late 70's big oldsmobile.

Mine is supposedly a late 70's early 80's Pontiace frame and floorpans, so maybe a Parissiene?

 

here's the poster child of why chassis swaps should be avoided.

 

THAT shit is exactly why I started this thread:
Definitive S-10 Frame Swap Vehicle List
http://www.jalopyjournal.com/forum/showthread.php?t=274702

~Jason