Project Daily Driver

[Kyle122]

Hey guys,
I've got a 1969 Camaro with an LT4 out of a 96 Grand Sport and a T56 from god knows where. The engine either uses and/or drips what I consider to be an unacceptable amount of oil. One of the leaks is at the rear pan gasket. I know it's not the rear main because I put a new clutch in it and replaced the main seal while I was in there. This oil leak has already ruined my new clutch. I belive it is also using the oil as the leak is not severe enough to account for the amount of oil I am putting back in. My question is this. If you were going to pull the motor to replace the gaskets (I have to pull it due to clearance reasons) what else would you replace. Money's not exactly tight, but I don't have an unlimited budget. Would you do just a simply replace the rings and freshen up the top end, or would you go all out? Also, what clutch would you run as I'm going to have to replace it as well. The previous owner claims it's pushing over 450hp, but I don't know how accurate that is. I also don't know what internals this engine has and what has all been done. Any insight will be much appreciated.