if you choose to go with spindles, the cheapest i found them when i bought mine was $171 with free shipping at
http://www.truckperformance.com/products/searchtype_56d/sortorder_AA/productcategory_Spindles/category_Suspension+~~+Chassis/sf1_TOYOTA/sf2_1988/sf3_PICKUP/sf4_2wd/
but if that's too much, ^^he's right about the torsions & blocks, but don't forget to take out the bumpstops & get shocks (at least for the front) or it will feel like you're driving a forklift.