Thank you all for the answers. 

 Yes she's complete and fairly straight.
The engine ran but was in bad shape. I re built the engine (new pistons/liners, bearings etc etc. 

This weekend I am getting the correct paint. I got some from my Agco dealer but it was too light compared to the original paint on the fuel tank. 
I am now getting Martin Senour 99L-8746 from NAPA (found those numbers on the Oliver site) so hopefully I can get the frame painted, paint the engine and drop it in.
My goal is to assemble the rolling chassis by end of summer and work on the tins this winter.

I live in the city....my BIG 100x300 city lot allows me to do sandblasting and painting outside..........

I cannot understand what drove me to get this tractor. I have no ties to farming or for that matter ever even drove a tractor, but I have always wanted an Oliver 77.
BUT guess what....my wife saw this little 9N on the way to a county fair last year. 
sO now I have TWO tractors. The 51 Oliver and a low serial number 1939 9N.

Tractor FEVER !!!!

Thanks again and I will post some pictures of my progress this weekend.