I think the stock front cladding has a good capability for using a smaller FMIC. Since it has to be fabbed from scratch anyways, it is possible to get it closer to the chassis than the Mooncraft did. Looks like quite some space in there.... probably to keep it away from any radiator heat, but shouldnt be an issue if JDM's isnt putting out enough compression and only a small dose of cooling takes place with the FMIC anyways. Hell, even something small like the top mounts on the STi might suffice in that location without butchering the front end, heh.

So the wheel well was the best you could manage for plumbing? Hmm, shame. But hell, good to see you got this far along so far.