I would probably get a street frame and use it as a jack of all trades rather than a flatland frame used for jumps too.
Free hubs (disengage the chain in both directions when coasting so pedals don't move, used for flatland) are more fragile than traditional free wheels (at least, they were considered so 15 years ago) but you can still learn flatland tricks on a traditional freewheel. Only a couple of people who took flatland really srs bsns bothered getting free hubs.
I would probably get a street frame and use it as a jack of all trades rather than a flatland frame used for jumps too.
Free hubs (disengage the chain in both directions when coasting so pedals don't move, used for flatland) are more fragile than traditional free wheels (at least, they were considered so 15 years ago) but you can still learn flatland tricks on a traditional freewheel. Only a couple of people who took flatland really srs bsns bothered getting free hubs.