Congrats on your purchase. Got any pics?

Yes, the B210 is a great parts donor if you need running gear parts: Engine, transmission, driveshaft, axles, wheels, etc.

For body/interior parts, little interchanges.

Ecology auto wrecking has a 1200, and some B210/B310 parts like the transmission which fit into 1200s. Also pick-a-part is a good place.

1200s didn't come with fender mirrors in US, so you'll have a hard time finding replacements. You can buy the door mirrors and rear-view mirror brand new from Nissan.