I would tear down the engine and inspect the bearings. I would clean the internals if needed and relube everything. Then I would tear the tranny apart and inspect all the gears and make sure it has plenty of fresh grease in it. Inspect all bearing in the tranny too. Then Id tear the diffs down and inspect the gears and bearings there and put 30-50k diff oil insid ethe diffs and make sure the ring and pinion have fresh grease. Then Id check the wheel bearings. After all that Id go get it dirty!
When you can afford it Id switch to RPM arms all the way around and use the Lunsford 5x35mm LSN1535 titanium camber links. (The RPM arm instructions actually suggest the Lunsfords to make the arms bullet proof. The aluminum ones that come with it bend and break surprisingly easy and they arent covered by the RPM warranty.
Then I would also get the Lunsford Titanium turnbuckles for it as you'll break the stock ones left and right.
After that I would try and snatch up Aluminum shock towers, bellcranks, (You'll probably also want the BAC steering link to go along with this). Steering knuckles (good luck finding those), and a chassis plate brace. These aftermarket parts are drying up pretty quick but the RPM arms and the Lunsford turnbuckles are still easy to find.
Oh and eventually I would switch to 17mm hexes when you go to switch tires so you have more wheel choices.