not sure if you'll find them that cheap, but i like the bilstiens i have in my 145. koni's are going to be just as expensive. as far as the rebound on all the shocks iv'e tried(bilstien, decarbon r-sports, pro shocks w/3-5 valving, kyb gas-a-justs) i liked the way the bilstiens were valved the best when running heavier sprigs. i have jamex 240 springs (110-175 progressives) in the rear of my 145 with the bilstiens. its a comfortable ride even with 17' rims with 45 series tires. on the 142 that has 250# rear springs i found that almost all the shocks i tried were too hard on compression and too soft on rebound so i'm going to have to have a set re valved.

best of luck