Very nice! Unfortunately, I think the repair to the wrist will drop collector's value quite a bit.
Antiques like this one are their own field- it would really take an appraisal from someone that works with Early Euro guns a lot- and sales of these are so infrequent, there is no real "average market value".
BTW, if you have not already done so, would be prudent to use a cleaning rod, and check to make sure there is not a load in there. Found one from the 1830's about 6 months ago- loaded.