how rare is my G10
 

I have a 1980 G10 sport van. it has the 250 4.1L motor with a three on the tree manual trans. it has the sliding door with the long window on it and it has a total of 7 windows including the windsheld. so my question is how rare is this setup. i cant find anything on the internet about the style i have or any photos of it. does anyone know or have an idea? thank you guys

About the only thing I would consider "rare" in your van would be the transmission. Otherwise its a typical van for the year with the full windows option.

Off set window gasket material
 

I have a 1982 G10. The only other thing I find rare is the gasket material for the rear Cargo doors and the long window in the sliding door. If anyone know where I can get some I would be grateful.
Thank you