My suggestion would be to go with a Brookville 3 window. It will be the easiest to build and when you are finished it will have some serious value as long as you finish it in an acceptable way. Some of the fiberglass Willys projects are fairly straight forward builds but there are too many out there that can be very frustrating to work with. I would suggest that before you buy anything run it by us first. I've personally been building these things for over 40 years and I've seen it all. There are a lot of others here with a lot of experience too so take full advantage of it.
Good luck, Walt