Known issues? Pretty much none.
The 22RE is considered underpowered by most US customers. 110 hp... to make up for it, it is one of the engines that Toyota's built its reputation for reliability. The auto transmissions are good too, although they sap more power from the engine than a manual trans.
If you go to see this truck, check out why the hood is a little open in the photos... it could be that they simply didn't lock it down, but it could be evidence of a collision and rebuild. Get a carfax report on the VIN.
The price is a high, but that mileage is a great selling point. At 100K miles, the 22RE is just now broken in. Seriously... you could expect to get another 100K-200K miles out of it if it was not horribly neglected.
An FYI History lesson:
- Tacomas (1995.5-present) are a USA only model, manufactured in the USA for the domestic market (NUMMI in CA, then moved to San Antonio plant)
- Pre-1995 Toyota trucks are Hiluxes, although they weren't badged with a nameplate for the US since the 1970s, with some 1991-1994 manufactured at NUMMI.
Aftermarket support for this model is HUGE. It was basically the same vehicle from 1986 to 1994 in regards to engine, suspension, etc. The 22RE was in them from 1982 (or 81?) to 1994 (as well as the Celicas, Coronas and 4Runners). Repair parts are cheap, both new from auto parts stores and used from salvage yards.
www.marlincrawler.com,
www.allprooffroad.com,
www.trail-gear.com, etc, etc, etc...
It looks like a good truck to me. Check the frame for rust if it might have been in an area where they salt the roads in winter.
EDIT: the FSM (factory service manual) for this model/year is available free online.
http://www.yotatech.com/f128/toyota-factory-service-manuals-fsm-all-years-156128/
get it and dig in.
Best of luck!