TLDR: Looking for an ERTRO 630 frame.

I wasn't originally intending to explain in a lot of detail about why I was looking for an ERTRO 630 frame because I deemed it largely irrelevant, but in the interest of guiding the discussion in the right direction and avoiding tangentials, I will provide some background information, anyways.

The bike I am replacing (a Bridgestone 600 -- not that it matters) has a full Superbe group on it. More importantly, it has a very recently built wheelset on it (you guessed it - ERTRO 630), handbuilt by a local master builder, using quality components. Even more importantly, the wheelset was a (pleasant surprise!) Christmas present from my wife.

Alas, the bike is now no longer rideable or economically repairable due to tube fractures and extensive, wide-spread frame corrosion. But the parts have plenty of life left in them -- and most importantly, I like them.

So, for all kinds of practical, economical and most importantly emotional reasons, I would like to transfer all the parts, including the wheelset, to a frameset that can handle them.

This is the background information, my motivation, and hence, my question.