Not sure what you mean by using IMRCs from other motors - do the others use the same style of connector? Operate from the same signal? Designed to pull at least the same amount of travel as the SHO? As for the dims of the wheel, I was really just wanting to see how involved it would be to replace the plastic flywheel inside with aluminum. My first one had the cable pop, the second one's plastic wheel disintegrated. In both cases, it seems the internal motor was up to the task of overcoming the secondary port build-up, but nobody else inside was (cable or wheel). Use of con/catch can should keep any normal IMRC in working order for a quite a while though. Yes, please send pics of what you have. Thanks!