...if you cannot do the work yourself (and some cannot), your first step ought to be asking around to find the person in your locale who understands what this is and can enthusiastically help you with it. If you post your location in the appropriate space on your log in avatar field, it's very possible someone here can point you in the right direction.

Eisentraut worked here in the SF Bay area, and his old frames are pretty trendy as desirable collector bikes. You just talked to the wrong guy.