I think the price needs to be under about $450 for it to sell well. The BD frames now seem to have the price going for them for the most part.

Anyway, I would be really interested in a chromed and lugged frameset. Even more so a fully chromed one. I would LOVE one of those.
But one with a chromed chainstay, fork, and lugs is good too.
Also lug lining seems like a good idea too. If you can keep that an open option, I think you should.

By the way, what happened with the idea of a copper-plated frame?