@1000hp you pretty much need to replace everything.
Probably should have a cage, rear wheels, rear tires, brakes, clutch, flywheel, rear end is fine and so is cams from what if read, injectors, fuel system, built trans only if its a manual, built motor, drive shaft, weld axle tubes. Drive shaft loop, then look at upgrading your brakes again lol. If it is a manual, id upgraded the shifter too. I know im missing some stuff so others will help.