Scrivvy,
Based on your criteria and price range, you can't go wrong with an ERA. Check out their website at
www.erareplicas.com. Outstanding product, great support, easy assembly (it really does bolt together as it should - there's no need to fabricate anything). I've had mine on the road since 2003. The biggest complaint you'll here about ERA is the wait time but that gives you time to build your motor while you're waiting for the kit to show up.
Chris