Official Mud Welcome!
Great place to start on this forum is the FAQ section for 80's. There's a wealth of information there to start with.
There have been other threads about where to start with $ and mods. Careful, this site is addicting regarding modifications. I ought to know. There's an old thread with comments from yours truely about not ever wanting to do any of the things I've subsequently done to my truck!
ARB winch ready front is a great start. If your suspension is original, consider an Old Man Emu replacement. The 2.5 inch lift is great and consider heavy coils all around if you pack lots of 'stuff' for your trips. I've done a few things and the one big thing I wish I'd already done is a dual battery setup. This is important if you've got lots of extra electronics running like a fridge, CB, inverter, etc.
Congrats on the lack of a factory rack. You'll eventually run into solutions several of us have done to 'cover' those pesky nutserts used to install the factory rack. Lots of quality expedition roof racks to consider as well.
Another option - upgrade the tires to at least 285's if you are running stock tires. They will fit on a stock truck and the spare will fit also.
Most importantly - if you need OEM parts - Cruiserdan at American Toyota - see the red banner ad upper right for him and all the other great vendors that support this board. Also - buy a silver star from Woody to support the board. You won't regret it!
As Mo said, check us out in the SoCal 80's club corner.