Tupac Shakur was his artistic name, right ? Since ppl must've tried to cash in on any tupac/2pac items after he died, I'd look for any 2pac potential conflicts, I agree 2paq is different and he didn't use that afaik
UK4B.com I like, it's almost mainstream if you want an easy name for a site or business in the UK (UK4B.co.uk is parked at Sedo, good idea to find out if any TMs)