I like it!

Flat glass-easy to replace. What kinda wheels is it set up for? Looks like the hood's protected the engine fairly well,so that may be rebuildable.Interior looks pretty intact,definitely enough to use. That huge box looks cool on it. Could make a neat camper or motorhome. I wouldn't go the one ton butcher job.
That'd ruin the character of the truck. :blat:
I'd build the truck as close to original as possible without throwing a ton of money into it,and enjoy it's unique character. Maybe do an upgrade in axle ratio to gain a little more road speed,or install an overdrive or an under/direct/over brownie.
Whites have always been tough,dependable trucks,and I'm sure you can find parts through American Trucks Historical Society. Also a good bunch of people-lots of knowledge there.
BTW- I'm buying a 1945 Mack truck and plan to put it back on the road for work and play in the next couple of months.

Maybe I'll see ya on the road!
Speed