Iltis rear quarter panel restoration question

[Casey B]

Aluminum works well for the filling of holes as a backing plate...is lighter and waaaay cheaper than brass or copper but does heat up quickly so a pail of water handy helps. I have done similar to the holes the Army filled with Bondo. A few patches later and other than a part of the original CFR number missing you can't tell. Looks good Good luck with the restoration.