I'm looking for an MTB tandem
 

I'm looking for a good used MTB tandem. Fandango DC9, Cannondale MT300, or similar. Size L/S or so, must be disc brake compatible. Would consider frame only. $2500-3000 budget. Thanks!

Did you speak with Alex at MTBTandem.com yet? I saw he posted a few used bikes on the FB group recently.

Here is one in Boulder which just popped up:

https://www.pinkbike.com/buysell/2634305

There's a Fandango DC-9 on Ebay right now, with a starting bid of $2800. Not mine, although I was lusting after it yesterday. https://www.ebay.com/itm/Fandango-DC...MAAOSwJ-ldbahL

I bought my Fandango three years ago, new, from Alex at MTB tandems. He is great to deal with and the Fandango is a terrific bike. If you can afford a used one from him, I don't think you will be making a mistake.

+1 on Alex at MTB tandems.
They have some tandems listed on their classified section now, I believe.

We had Doug Curtiss of Curtlo Cycles custom make us one. Alex supplied some of the tandem specific components for it.