If you like the Kitfox (which hasn't a sparkling reputation this side of the Atlantic), take a look at the Easy Raider at
http://www.realityaircraft.com/ , which I believe was jointly developed twixt a UK and US company, so should be available in the USA, although I've no idea about American specs and prices.
Personally, I think the J3 or PA-18 are grand little aeroplanes, and knowing several people in the UK who own them, I've not heard many complaints about either running costs or parts availability. Given they were built your side of the pond, I'd say that's a good buy. You might be able to get a tatty one and spend a few weeks re-covering it, almost certainly adding a lot of value.
G