BK,welcome. Another site is
http://www.drillinghotline.com. I purchased a 1968 Heym drilling bored 20/20Ga over .270Win from these folks (JMar)earlier this year. JMar has been in the business for about 20 years and is straight forward in their dealings. My Heym drilling weighs 7.5 Lbs and has 23 inch barrels bored I.C. and Mod. It takes a little getting used to with the short barrels. 40 years ago I wanted to buy this gun new from Heym - the only difference was a 30-30 cal barrel. I frankly didn't know how to import the gun at that time and I wasn't smart enough to ask the right questions - back then the price was $360.