Heres a few new pictures of the primary. One showing the secondary and topload placed how they will be when it is finished. Worked the primary into a little better shape. The topload is 4" aluminum ducting covered in a aluminum tape. It has a diameter of about 8.5", which is a little small, but I think should work?
Matt, Yes it will work. Almost any design will work as long as the tuning is OK, the coupling is OK, and the spark gap is adequate.John