Big Glass envy. Baby Dallmeyer will need a playmate some day. Makes on think of stripping down a golf cart and making a self propelled field camera. Maybe a used circus tent panted black for the bellows.
If it's worth doing, it's worth overdoing. How about an old U-haul trailer, mount the paper on the front end and the lens sticking out the back end. Have a tray of chemicals lying on the floor of the trailer. When the exposure's up, just flick a lever from the outside to tip the paper into the chems, drive down the road for a few minutes to provide the agitations, and you're done.
An awful lot of electrons were terribly inconvenienced in the making of this post.