I dunno I don't have a ton of experience but I know I have seen shops replace a busted spoke with any old spoke they have that's the right size. I don't see an issue with building it up and then replacing it later. The spoke provides tension between the rim and the hub, as long as you can provide the same amount of tension I don't see it being an issue form that standpoint. The only slight issue might be if the straight spoke seats itself in the hub differently than the larger alpine III would.