For my 1991 Geo Tracker, I used the 2 inch spring spacers (rear spacers are 2" and front are 1.5"). Those were about $90.
For the longer reach, I had to replace the rear shocks with those for a 1991 Ford Crown Vic, and the front needed a set of the strut spacers ( $35 pair from lowrangeoffroad.com).
For more tire clearance, I installed a 2 inch body lift also from lowrange ($120). I fabbed a set of brackets to lift the rear bumper, but haven't done the front bumper yet.
For tires, I put on a set of 30x9.5 -15 MTs from pepboys. The tires are mounted on Cragar Soft-8 rims 15x7 ($35 ea from Summitracing).
The thing does off road wheeling very well. It keeps up with stock jeepers, but does need a rear locker to reach that last 10% of tuff trails. A skid plate and a pair of rock sliders would reduce the risk of body and underside damage.

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MarkB.NV
1991 Tracker, 8valve 1.6L, 5 spd, 4x4, 2 door, soft-top, 99,xxx miles, w/ 2 in suspension 2 in body lift, 30x9.5/15 MT tires.