I need to place an order for more poly-brush, Poly-Spray, and top coats. Im wondering if anyone has a good estimate of how much you need to complete the job. So far Ive gone through 3 gallons of poly-brush (3 spray coats on horizontal and elevator and two on one wing). Fuselage hasn't been started but the other wing has a brushed on coat.

Also Im planning on painting my plane with Ranthane Bahama blue, black, and orange yellow. Ive been told its a good practice to put down a white base coat, so I plan on using poly-tone insignia white for this since its cheaper. Any estimates on how many gallons of white the base coat will take? And how many gallons to cover the plane after white in Ranthane?

Thanks!