I have already purchased the rims so this is what I am going with. I am going to hold off buying the spokes for a bit. I am currently reading "Professional Guide to Wheelbuilding" and with the information from that book I can obtain all the measurements myself instead of using the rim/hub selections out of the spoke calculator apps. Assuming the measurements come out to needing the same length spokes and I do decide to go with the Alpines could a longer nipple work? For example a 14mm nipple with a 298mm spoke instead of a 12mm nipple and a 299mm spoke?

I realize some of this is probably bordering on common knowledge for most of you but this is my first time through this and I don't have any history to rely on. I don't have a frame to put these wheels into but I will eventually find the correct vintage frame for them. If I go with the Alpine's I have a stronger wheel in case I pick up a touring frame. The downside there is I picked a pretty narrow rim and it may not be the best fit for a touring frame either.