I have a relative that used to drive S10 Blazers...
The in-tank fuel pump is a pain in the a**.
The vacuum operated ventilation controls fail.
If it's a 2.8 it's a gutless wonder. Seriously.
The AC compressors on that era of GM vehicles die all the time, especially when converted to R134a. They're garbage! Of course, if you don't need AC that's fine, but I know I wouldn't want to live without it.
Save up your money for an Explorer or a Bronco 2. They're much easier to work on.
Here's the thing. I bought a '87 Bronco 2 for $500 at the salvage yard, with a 2.9L, a good body, and a failing FM145. I put $200 into a transmission (M5OD), and probably $300 into other things (radiator, hoses, EGR valve, heater core, etc). All of the things I fixed were straightforward, and, dare I say it, easy. I spent $250 on tires. It had 138,000 miles when I bought it, and it now has 156,000 miles. All of these miles it got over 20mpg, and has been trouble free.