Dear Tim,
He's an alternative to consider if you don't need a complete body.  We had
a very nice, CHEAP,  form constructed by talented volunteer with good
sewing skills.  She used washed, unbleached muslin with polyester batting
over a rough contoured ethafoam core.  To make the core, ethafoam planks
were "laminated" with hot glue and shaped with an electric knife.  The form
has no head.  We already had a stand.  Our particular volunteer was hoping
to get museum experiece and was thrilled for the chance to volunteer.
Check out a local college, high school home-ec, fabric store clerks, or
community theater group for possible volunteers with applicable skills.
Good luck.
Sarah Tuttle

P.S. Several years later, our ex-volunteer is now EMPLOYED in a different
museum.