Hello all. I've been lurking on this forum ever since I decided to get a new bike. So, here's the deal. I recently picked up a '91 Diamondback Prevail Frame and Fork on eBay for super cheap. I'd like to build this bike up with a flip flop hub, fixed/free. Below are the dropouts. Should I get these dropouts hacked off and get track dropouts instead? If so, are there any shops in DC/NOVA/MD that are willing to do this? Any help is appreciated.