I think it is great what you are doing. I did that with a Raleigh super course with capella lugs. I built with some new and some new old stock. It has a 8 speed with brifters, dura ace. What I don't like personally is the fixxy craze. I just don't get it. Wouldn't u rather have gears?? make sure the guy u use for the powder coat is reputable. I had mind done by an ex body shop man {so he claimed ** and the clear coat is all peeling and never seemed to dry after weeks. so I may have to tear down again.. I am new to this vintage bike stuff, but the 710 is not too common. I have seen 400,311, never a 710