FWIW, I've ordered from innovee without issues. Whether or not a trans-Atlantic transaction would be hassle-free, I don't know.

Removing the Denon from its plastic body and putting it into an aluminum or wood case isn't brain surgery. Taking your time and performing the swap under plenty of good lighting is the key. I'm sure you've seen the Youtube video showing how to cut the glued areas on the plastic housing and remove the guts.

The Soundsmith-modified Denon is actually a 103 or 103R housed in a wooden case and affixed to a brass or aluminum plate.