Hey Puzzel...love your bike. When & if I ever get a ride again...it'll either be another V-Max (new one sounds good - if they ever release it) or something like a VTX. I'm getting older, probably don't need a 200 hp 2 wheeler.
To answer your questions, I get my wheels from Hobbylinc.com out of Nebraska I believe (mail order) or Model Express out of BC (Canada). Both are good, Dennis at Model Express is much more like dealing with your own dad - assuming your dad is nothing but patient and kind anyway. H/L is more like a 'business'. Dennis has an awesome rep. There's other of course too...and more detail parts than I'll ever be able to afford (you should see the REALLY good guys. I'm process cheese compared to them.) Scale Dreams also has tons of stuff.
Paint I use Creatix Auto Air water based paints and mix my own colours with (drum roll) water! And Future floor polish, 33:33:33 mix. 1% BS. Clear with a good enamel clear (or Urethane - U-Pol is super nice stuff, just not indoor friendly). Sprayed out of a Paasche air brush and a little air compressor - no filter, so what if water gets in the lines, I'm mixing paints with water!
BMC is a good model forum, Scale Auto too, they're just not as nice...or maybe they're just more 'honest'..if you suck they'll let you know. BMC rather encourages you to get better instead of making you feel like a loser if you're not a pro. There's another but I can't think of it's name...I'm sure there are more.
BTW - I hate those Mustangs too...but the two I did make me think there's potential there if someone did them right (ie "had money"). Where's Chip Foose when you need him!?