Yep, converted my Van Nicholas Yukon to flat bars plus bar ends to create The Super Commuter!
I flogged the Ultegra 6600 drivetrain and fitted Shimano R780 levers, SPDs and a 1×10 (44t x 11:36) transmission. To further the sacrilege, I put mudguards on it, plus a Deuter frame bag. I love it. Must post a photo so the flaming can commence!