viewing pictures of that frame, I would say YES its definitely a 34 master.
I would say a good solid complete not rusted thru frame like this would be $300---500 range .
They built a lot of 1934 Chevrolet masters and frames should not be scarce.
The guy can ask whatever he wants, cannot eat RIDICULOUS ASKING PRICE.
The frame is missing the rear riveted to the frame, " gas tank cover support brackets" that are about 6==10 inches from the end.
MIKE============
I agree with you...for what he is asking I could buy 4 or 5 of them.