when I was doing the work,I like to do it all myslef.I never sent anything out except a couple of full body turky's.
you can go to
www.taxidermy.com for info.
or call 1-800-334-8012
1-800-777-2709
1-800-872-3699
one of these should be able to help with that kind of info. WASCO (wildlife artist supply co.) is pretty good for any supplys or info you should need.
good luck in getting started.I enjoyed it greatly,had to give it up due to an accident.[&o]