Sure is! I also have a 3035, already serviced. It wasn't cheap but I'm glad I got it when I did, they are hard to find.
What are you going to build? Early matte dial or later with WG surrounds?
I think at this point I am going to have to hold my nose and grit my teeth and pay for a Phong case. Then, I'll ask JonJ to shape it, and have
misiekped built with the (all real Rolex) matte dial/hands/insert/bezel/click spring/retaining ring/3035 open 6/9 DW/crystal/crown. It will be a c.1982 ALL Rolex except for the case!
I'm glad I got the gen matte dial when I did, it seems you just can't find them now without paying in the thousands....