ORIGINAL HOHNER ACCORDIAN TUNE IS E FLAT - $355.00
Monarch accordian - $36.00
16" Monarch accordian - $46.00
GERMAN HOHNER BUTTON ACCORDION ACCORDIAN MELODEON - $139.74
CHILDS LITTLE ACCORDIAN VERY NICE AN EXCILLANT SOUND - $15.00
Oh I remember when!! A child's accordian by "EMENEE" - $6.99
There's one on e-bay for $150. I believe they're concertinas, though, not accordians.
I don't see any problem with this other than the task of trying to put the end cap back on, which is most likely glued. However, most accordian doors are connected only at the top. I would fold the door up, tape on both sides of the cut with masking ...
Like anything, it depends on condition, playablilty, and what someone is willing to pay for it. eBay is always a good way to see what someone is willing to pay for something.