I second the opinion to run the truck w/o the front plate. Put it in your glove box for if/when somebody in a uniform asks about it and play the antique vehicle card. "Yes sir, it's right here -- I just haven't figured out how to mount it yet ..." Most states have exceptions for things that weren't original to the truck -- like turn indicators, seatbelts, etc. Here in Maryland, my '49 is not required to have a front license plate. So you might want to check your state's provisions for antique/historic vehicle registration to see if you can opt out.
