You have not said whether the Fuji is new, old stock (NOS) or used. If new, by all means go with the Fuji. Fujis of that era were beautifully built and finished with lovely lugs, neat brazing, and very attractive paint. The Windsor frame (I have built one up for a friend) is competent, but certainly crude and heavy with bulky welds and funky tube shapes. If the Fuji is used, then the call is a little closer. In that case you will have to factor in the condition. Unless the Fuji is in less than very good condition, I would lean heavily toward it. For me the Windsor is a bottom level choice. With the Fuji you have the chance to get something really very nice for a bargain price. I think I would go with the Fuji even if I had to have it powder coated (with the loss of the decals) for another $100. My experience with Fujis of that era is THAT positive.