Stencils
 

Hands down the best paint is signpainters paint. It will run you about $40 a pint, but once you use it, you will ask yourself why you ever tried anything different.

I am no artist, but Clive at the museum does the stencilling for the museum. He uses a laundry pencil to mark the lettering, then paints them free hand. Don't skimp on the brush either. After a day, you can wash off the excess pencil marks.

I have also done it with the sponge when I was attached to the armoured corps. A little patience will go a long way. Don't try to do it all in a single coat.

Have you considered Micheals Arts and Crafts store...
 

They do carry stencilling supplies including the stiff short hair brushes for the job.... and the special thick paint paste.....there should be a few outlets in the GTA.

Your first ride in deep water should be hair raizing as the truck tends to float with a definite nose down attitude.... unless you carry cargo......

Of all the driving that Andre and I did with the truck we never got stuck and never had ANY mechanical problems.

I envy you!!!

Cheers