I seriously looked into making some a few years ago, but in my opinion there is not enough room to make it work.
The small 8 lug like pickups to big 10 lug works OK because the bolt circles are different enough to make room for studs and nuts.
The 7.25" 10 lug up to 11.25" doesn't leave enough room for the two bolt patterns to exist in the same adapter.
At least that's what I decided after trying several different ways to draw it in auto-cad with no apparent and safe solution.
Grigg
