I tried a search for Heym rifles half a dozen sites come up but nothing with prices or any real inventory. I bought mine when Paul Jeager was still in business. What a job he did finishing this gun.

But the sites that came up were, New England Gun, Euro Gun imports, Holland and Holland, Griffin and Howe.
Try the search and make some calls. It's a fine rifle.
I really love mine. 1 1/4 -4 Schmidt bender Eaw quick detacheable mount, Jeager express sites. When I can borrow my sons camera I'll try to post a pix.