Aaron,
I use one on my 80ED.
It came with a finder bracket and I sourced out an old base to match the 80ED.
I use it all the time and I can't even remember the last time I used to Original finder that came with the Orion....
Here's a pic.
I used the trees in the back to show some scale but when its shooting into space it looks awesome and very accurate and easy to use.
Hope this helps.
RB