Or Jonas, if you could just git yer hands on some HA-114 reeds and have the accordion built around them! Or a used hand made accordion which already has HA-114 reeds installed in it. They do exist!
Know this....If you install HA-114 reeds into a hand made accordion, they will restrict sound somewhat by the amount of air they allow to pass through them, but with HA-114 reeds, the sound carries farther and penetrates. It's like a fine edged surgical scalpel versus a butcher knife. The butcher knife relies on power, while the scalpel relies on precise and delicate skills.
In other words, keep your Hohner HA-114 accordions for when you want that "Hohner" sound. And slowly figure out what brand, what key, and what tuning of a brand new handmade accordion you'd like.
PS. The sound of your accordion improves as your skills increase over the years. Make do with what you got neg. Until you know for certain what it is you want.