Morton,
F-100: I have a bare bones conversion done by Bearcat that it quite usable, but at the time it was done, it was still DWare. Apparently some of the annimations in the exhaust petals are quite complex, but all of the other annimations work well.
Now that it's a freeware airplane, perhaps it can be given its full due in a complete conversion.
Skyhawk: I think the old Alphasim Skyhawk and the Fox 4 Scooter are the only freeware FS 2 Skyhawks worth the effort right now. I can't recall if they have reflective models or not.
The payware RAZBAM A4 is nice and would make a good canvas for your brush.
1. Alphasim A4
2. Razbam A4
3. Converted F-100
4. F-100 Conversion-Mu Gia Pass