I am looking down those lines as well Gary. I notice the Losmandy side by side is about $220USD. I already have the universal adaptor plate, so all I need are the appropriate rings for the ED80 to affix to the Universal adapter. This would then as you say enable me to fix whatever I like side by side with the Tak. I gather Mick is a machinist. Obviously if I could get one made in Australia for a better price, I would go down that road for sure. Thanks for the thoughts.