Emile;
Great looking Panel!
Are you sure it is a 1/2 Ton? It looks a little long to me and the rims a little big. If the wheel base is in the 137" range it may be a 3/4 or 1 Ton. The vin can tell.
I believe your cab will accept a gas tank and seat from the 41 -46 era. I put a bench seat from a 1/2 ton pick up in mine and it works great. You can actually install it to get a bit more leg room than usual.
Good luck with it.
Mike
