Definitely not a Busa. Get the cheapest, decent running bike you can find. There are plenty of older 500 to 650cc sized bikes you can get for the $1000 to $1500 range. A twin would be my choice for a new rider. Cosmetics are great to have, but tires, chain, and sprockets will cost you $$$$s if you have to replace them. Plus, you are pretty much guaranteed to drop the bike one or more times. A smaller bike is easier to pick up and an older bike doesn't cost as much, especially if it wasn't in mint condition in the first place.