Jason R., I purchased the cradle off another guy who has a Boss 351. It is a custom made piece that is very heavy duty with rollers. It has Ford emblems and Boss 351 all around the tubing and under the clear coat.
Kevin, the tires I am going with are the BFG's KW NT's with 255/40/18 front and 295/35/18 rears. That puts me with 10.2 wide tread up front and 11.9 at the rear.
Thanks guys, she should be done before summer time.