I took the old wheels off this morning and there's some play in the fork in front and rear spacing so I think the 126 rear and 100 front spacing should be ok with a bit of pressure. I was going to just remove the old freewheel and use it but apparently the French had a different size for threads so I think i'll just go with this rear wheel/hub Sun M13 REAR 27 inch silver 5,6,7 speed freewheel hubs wheel 32h [74547] - $49.00 Velomine.com : Worldwide Bicycle Shop, fixed gear track bike wheelsets campagnolo super record vintage bike and then get a new 5 speed freewheel and chain from amazon or somewhere. I'm assuming that I can still use the original cottered cranks (they look great after cleaning) and be good to go. I may ditch the derailer too, its a SunRace M2T and doesn't check out aesthetically with the bike so I may just look for a more plain silver or chrome one if I can. I'm still going to leave off the Huret front derailer and make it a 5 speed. Am I making sense? haha, this is new territory for me. I attempted to fix it up once before but got sidetracked. Trying to do it right this time