I installed a set of '00 Accord seats in an '85 X-cab. They were a lot taller than the originalk seats, but they still worked. I used the fromnt outer mount of the truck and drilled a new bolt hole for the inner one, then welded some tabs onto the rear seats and bolted them to the floor. I think the CRV seats(horrible seat) is lower so you shouldn't have the height problem. You should see if the seat tracks will swap over, most are only held on w/a rivet.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed