Seeing as you have the frame stripped. I'd think about taking the frame and crank into the shop and having them try a 127 in it and see how it clears and what kind of chainline it gives you. If it's acceptable, buy it.
Also call first and verify they have a 68x127 in stock.
Or just buy the bearings and rebuild the cup & cone existing. I believe you had gotten a Miyata and were looking at moving this bike down the road anyway.