Willy,
Welcome to Oldgas!
Nice score. Luckily, the 39 is pretty much the 65 mustang or the 70 chevelle of gas pumps - very common and well-supported. You should be able to find any part you need for it from the major pump parts suppliers (some of which are regulars here). I'd highly recommend getting the guide to gas pump restoration that is available for a very reasonable price here on Oldgas in the bookstore section. It has good advice and it also shows the color schemes for the different brands.
For parts, try googling the web sites of:
Vics 66, Gas Pump Heaven, Time Passages / Scotty's Garage, and Ron Scobie.
Best of luck,
Wes
