Take TN's words to heart. Rust is everywhere and, if you're not extremely careful (and lucky) you'll still need craigslist to buy stuff to replace all the stuff that the PO (previous owner) slapped on there years ago and is now worn out!
Yes, you can find a great no-rust truck out west here, and there are some very nice trucks and good deals out there, but more often than not, even they have rust. Just in harder to see places. I bought mine in CA when it was only 6 years old and it was already rusted through in the kick panels and floor boards! Well, ok, it's first couple of years were in Montana, so there's that. But you get my point.
And since they're all 30+ years old now, you might just look at a Bronco like any other car or truck you'd want to buy. Feel how "solid" and clean and apparently well-maintained it is before looking at features and goodies. Yes, it's great to find one that has a lot of expensive bolt-ons already added, but if they were just thrown at it and the rest of the truck is falling apart, you're money ahead if you go with the one that feels right.
I think there have been plenty of members here that have bought a nicely outfitted Bronco, only to sink another ten grand and the next ten years of their lives into it to actually make it "right". A friend went to L.A. (350 miles) to get one and spent a day scared whitless with the thing wandering all over the road acting funny. And yes, literally falling apart. In fact, a front wheel came off in my driveway when we jacked it up to see what that "funny noise" was!
In other words, long drive with the potential of a return flight or not, TEST DRIVE, TEST DRIVE, TEST DRIVE. Then crawl under it three times to make sure you don't miss anything. And take a friend who also knows cars to catch anything you miss.
You know, standard operating procedure for a vintage car buy.
I probably haven't said anything you don't already know. I'm just reminding you amid all the excitement. That friend I mentioned wasn't even a friend yet (known only through this site and our Yahoo e-mail list) until he had to stop by my house because he couldn't make it all the way to his with his fairly well outfitted Bronco. A change of spindle, hub, bearings, caliper and trackbar bushings later (and new underwear) and he was back on his way.
Good luck!
Paul