Thanks guys, of course one of the other fun parts was following you guys and your builds on this forum.
ERA Chas, I choose the Mastercrafts because I wanted a 295/50/15 and I did not want the BFG's because of bad experience with them through the years with my Mustangs. Mastercraft Avenger, Cooper Cobra, and Micky Thompson ST are the the same tire, just different sidewall and tread. I simply liked the tread design of the Mastercraft. They are not high performance tires with a S rating, but they are round and do not vibrate and shimmy.
Mastercraft Tires 39702 - Mastercraft Avenger G/T Tires - Overview - SummitRacing.com
TKB; I have added close to 15 gals once, put I seriously fill all the way up the filler neck and the gauge will read full.