I have an old Schwinn Tempo frame in unbuilt NOS condition. No fork though. This is not a mechanical question per se, but I am trying to figure out what fork rake would work best with this frame. Its a 64cm frame. I can go old school and do a 2.5 inch rake(NOT trail) for a lower trail set up, or I can get a Nashbar carbon fiber fork with 43mm(less than two inches) rake and higher trail. I could also have a fork made, but pretty pricey. I would be building this up to be as light as I can, not as a touring frame. The frame has about a 60cm top tube, 72 head angle, 43.5 chain stays.

Any help appreciated