Window glass is very specific to a certain model. The only exceptions generally are "twin" cars like chevy/pontiac or ford/mercury.

Unfortunately, there is no other model like the 1979-1892 Datsun 210. I believe you'll find the door glass is all different for 210 2-dr sedan, 2-dr coupe and 4-dr sedan.

There are 210s out here in the yards, so if you can't find one in Oklahoma, ask them to try their parts "hotline" and have it shipped.