Hi AlekZ,
your project sounds very interesting for German and Austrian collectors an many others too I guess
If you plan setting up a business I suggest not only to rebuild CRTs but als eye tubes. A new or like new EM34 can easily bring between 50 and 100€.
Anyway keep us informed.
If you rebuild a AW43-80 you should also be able to rebuild
https://www.radiomuseum.org/tubes/tube_mw43-64.html
or the even rarer
https://www.radiomuseum.org/tubes/tube_mw53-20.html
what should be a nice business or at least keeping our hobby alive
Good luck and all the best from Austria
