We have an h22 swapped del sol on teamsolfl.com. PM twoseatterror or H22AEG2
The advantage of an LS bottom end is the 89mm crank. That's about it. Otherwise you have to run oil lines for VTEC to work. You can always take an 89mm crank and put it into a b18c block ... or go all out and get a nice stroker kit for a b18c
Anyway, yea 5.5k for that motor to blow after 15k miles? That sucks, mang.