I am looking desperately for a MOOG OPUS 3 !!!
CAN YOU TELL ME WHERE I CAN FIND FOR SALE ???
Please HELP ME … 
There’s one on Ebay right now.
Pretty cheap at the moment.
He won’t ship internationally. Too bad for Viplay.
Well, it’s sold now, so maybe the seller approved him?
Just trying to help.
I see them on Ebay often.
Just beware of the famous dustcover gunk… 
Hmm, what’s that about?
Same as most of the lower-end synths Moog produced around that time.
The dustcover material, after several decades, turns into a black goo and gets all over the switches and sliders.
The Opus 3 uses this same material.
Not just the low cost moogs
Polymoogs had that crap, as did Synamps and graphic EQs
But not the Taurus Is
i have a near flawless opus 3 for sale
check out my post on the vintage synth forum for decription and pics
I found a thread that contains an entry describing how one person cleaned the dustcover goo from his Opus 3, perhaps it will be useful to someone.
Caveat: read the entry further down in the thread where another person cautions about not letting any of the contact cleaner get into the sliders.
http://acapella.harmony-central.com/archive/index.php/t-2133062.html
Bob