I think the vintage models are what should be looked at. These are the models that most collectors are looking for and are hard to find. Modern models have a following, but most are very close and not worth the time and effort to reproduce again.
What I would like to see along with these cases...a rep movement of the 1570 or 3135. Most of the parts are available as aftermarket parts, but the bridges/base movement are the problem. If these could also be reproduced in the $200-$300 range it would be a great investment.
It would be nice for the forum to take on this as an escrow kind of deal and a fundraiser. A win-win for everyone!