81 would be Tipo. Middlin', but kinda nice. In good shape, smoother than price equivalent Jap stuff of the day. Parts should still be available, both cones and cups, if you know where to look. Yes, you can pull the cups and press in new ones. I've always had a spare hub or two to rob parts from if I wanted to keep a wheel together.

Rigida 1320 and Mavic E2 were the first decent clincher rims out there. I wouldn't replace anything that wasn't broken or didn't fit your use.

Have fun!

Mel