The oem kit gasket kit has everything internal to the engine inside it.... The oil pump you can buy new from toyota still and last time i grabbed one they had them in stock, but if you check the gears and if they are good you can reuse it.
Hit up sam q for his relocation kit, velocity stacks and gasket kit (he would prob still have them in stock) and i'm sure he can probably source an oil pump too.
Also if you want an adaptronic, i purchased one off 70xin a while back which i'm thinking i won't use, wired / tuned for 7age20v blacktop already, which should plug straight into your setup... so if you want it shoot me a pm.
Look forward to seeing more of this build...