Painting question regardinga Sherman M4A2 tank

[Royal Canadian Ordance Corps]

Hello Forum members

I am new to this forum but am a regular on it's sister site
Canadiansoldier.com

I was wondering if the members here could give me some do's & don'ts and
any hints or tips in regards to repainting a 1945 Sherman M4A2 tank

If anyone has painting tips, please let me know.
We will be repainting the tank which is on display at the RCOC museum.
The tank has been recently sandblasted and repainted in "incorrect" flat NATO
green,
but we would like to repaint it in period color with unit markings.

We managed to contact Willys Acres, Oro Station ON who supply paint to the
Canadian forces.
It seems the correct paint is Semi-Gloss Olive Drab, Federal Standard number
24087. Manufactured by Gillespie coatings, Texas.

I was told It takes two gallons to paint the entire vehicle with a
professional spray gun and compressor. We would have to thin the paint with a
Synthetic Enamel reducer, ratio Paint: Reducer 2:1

Any tips would help
Thanks
Roger Roy