You can get a single cab Nissan D21 circa 1992-1994 for about $4000. Extra cab are hard to find for under $5000 and if you want 4x4 extra cab then you need about $7000.
Toyota are more expensive, Isuzu - Chevrolet - Mazda are less expensive. Diesel are more expensive and double (crew) cab trucks are hideously expensive.
A good place to find different models and prices is
Autos Fijatevos Costa Rica. Also look at
Diario Extra - click on clasificados. If you use a good browser like Firefox you can search right on their page for any make or model.
If you want help finding a car - WheelsCR.com offers a personalized car locater service.
