if those 10's dont fit, check out Resonant Engineering's RE8's. they are 8" dimeter and have a 3.75" mounting depth, and will handle 200 watts rms. ive got 4 of them running on a jbl 600.1 amp, and it sounds quite good to me. oh yeah, they are pretty cheap too.
http://www.reaudio.com/
http://www.reaudio.com/