318 Street/Strip build?

Let me start over. I was on my 15min break so I was rushing through the posts. Basically I want to ditch the bench seats and replace the fronts with lowback buckets. Remove the back seat and throw up a sheet of aluminum. Relocate my battery to the trunk along with a fuel cell. Ditch my 7.25 rear and replace that with an 8.75 which I DON'T have. I have a line on a few out of 68-70 B Bodies. I have did a swap before on my Aspen so I'm familiar with relocating the perches. I believe the B Body 8.75 (68-70)are roughly 3" longer so about 1.5" on each side. My first choice is one from an A Body but... Also I want to get a set of SS springs if possible. For the brakes I'd like to find a kit or piece one together to get discs up front. Drums are fine for me in the rear. As for the chassis id rather not go roll cage if possible if I can get away with connectors that would be a plus for me. As for trans I want to run my A230. I'd like to get the 833 but they're getting expensive and harder to come by. I'm not all sure on gearing, it won't see slot of highway but want something that will work with my engine combo. This brings me to the start of my thread. I'm wanting to see what everyone else is doing engine wise to make these little A Bodies a warrior. I'd like to compete with the fox body 5.0 and SB Chevy Camaros that everyone has and think they are the cats a$$.