Wow that is a beauty.
don't underestimate the 2TC. I had one in a Celica many years ago and with basic head work plus compression, mid range cam, exhaust, lightened fly wheel and twin Weber side draft carbs it screamed. Plus assuming you are US based, a 3TC upgrade gives you 200 extra cc. This sort of work isn’t hard, and is hella fun.
The ‘modern’ way is to install a newer EFI engine, but bolting the engine/trans/diff in is the easy bit. The fuel and electrical systems are not. And unless you can do this yourself, will cost quite a bit.
And then you may also need to look at upgrading brakes etc. With the T engine, the brakes can probably remain with an overhaul and better pads.
Do some reading around the forum and go from there.
Oh, and welcome! Keep us updated perhaps with a build thread.