Congrats on the decision, I am sure you won't regret it, you will be getting a big, black, mean looking mount. lol
To mount an ED80, you will probably be looking at the DUP dovetail plate and a set of rings, be they the original rings that came with the scope or possibly a set of Parallax Rings with another DUP above so you can slide on a guidescope etc, that would be the way I would go.
Check out the Losmandy web site for a complete list of parts.
Enjoy.
Cheers
JohnG