Mike, you have an original WW2 paint supplier right in your town. We found a can of WW2 paint and phoned the company and they were still in business. They have been making paint for us for years and they can colour match anything, The paint they made for us now has a rust preventitive additive. It does fade a bit after years in the sun (my mailbox) but my artillery tractor body has been painted for 10 years and stored inside and except for the bird sh*t still looks good. Also the price is real good. We painted 2 vehicles in the War Museum in Ottawa with this stuff.
Brian Gough had them do some dog sh*t brown also.
The name of the company is White. At least you wouldn't have to pay the hazardous material costs for delivery.
Cheers,
Barry