I feel that your mistake is in the "why not build a new one for daily use.
Thats no "mistake". I said I'd hope for new built Ju 52s but to have a cheaper option I suggested Baslers as an alternative. No need to get emotional.
If you keep any oldie airworthy long enough you end up with just the serial number plate being original. That's neither the old airplane nor can it be flown and used like in it's glory days.
Building the same type new would give you some reliable all new frame that's good for daily use. This is what I suggested. At the same time you could keep the real oldies the way they were meant to be. With original structure and fabrication instead of using them and finally ruining them in everyday operations.