Hi Guys,
Yes the tray on the Studebaker looks like the tray of an US 5 ton truck. But the rest of the truck looks good and original.
A museum here in The Netherlands (George C. Marshall Museum in Zwijndrecht) has 2 restored Studebakers. One of them is fitted with the workshop body that was taken from a GMC-cckw 353.
Jon, that might be an idea!
Alex