What kind of hull are you looking for?
I'm trying not to advertise in the forums yet I do have a JAE .21 outrigger that does have a Nova Rossi .21 in it, it just needs another paint job on it as the one that I laid on was supposed ot be fuelproof but wasn't. Never seen water. If you're interested in something like this, PM me. I had an offer to sell the motor so it's no big deal if it wanted or not.
The other downside is that if you're new or relatively new to RC boats it might be too much for you to take on right now as when done right it should run around 70 MPH. A decent deep-vee hull will run in the low 50's as a comparison.
Check the Marketplace in here as you might find something that you can drop the NR into with very little work.