MJSA has some health insurance available. The National Association
for Self-Employed does too. I think there might be something with the
American Silversmithing org.??? I don't know any specific about
these. You might also check with Crafts Report as far as information
on what other groups might make this available too.
In Oregon, if you have a business of two or more there are insurance
companies required to accept you for insurance regardless of
pre-existing conditions and at what I think are competitive rates to
larger employers/groups - in case anyone from Oregon is reading this
thread and doesn't already know that.