The problem is the insight is such a narrow car. Almost 10" narrower then a crx if I remember correctly. I'm working on a d16 right now that will be going into my 00 Insight. I'm hoping I can run the oem Insight axles if I can flip them from side to side. If not you can cut the axles to length and have a sleeve same id as the axle od machined to slip both halfs of the axles into and weld it up. Of course you would want to do this with a v block to make sure they are straight. Good luck on your build man.

I plan on running a 99 civic ex engine harness on mine with a obd2b to obd1 jumper. You only have to give 4 wires power, one wire ground and hook up something for the starter signal to get it to fire assuming you have 12v going to the fuel pump. I did it this way on my crx drag car because I got it without a chassis harness and didn't want the extra weight of one. Took me a few hours to wire up the whole car from front to back and everything that needs to work.

Gotta love the older Honda simplicity. Interested to see what you come up with for axle fitment. I was just looking online today and they list the insight k series axles as eg/dc fitment as well so that has me curious if you'll be able to make them fit. I'm in the planning/ rebuilding process for a turbo sohc for my insight. The axles are the one thing holding me up in my head currently.