Pete I doubt you'll find anyone who has a Volquartzen Trigger Group that they'll wanna sell used, It's possible though..
I buy all my 10/22 & MKII accessories from Paul Zint @ the local gunshows & he has the VQ 2000 trigger group assemblies for $209.99
Tactical Solutions Ruger Pistol 10/22 Rifle Barrels Custom Stocks
Good Luck oldfella..
You might try over @ Rimfire Central Forums Classifieds Too..
I have $139.99 in my 10/22 & couldn't be happier..
Paul Zint has a pic of my 10/22 & MKII on his customer pics page
Gary S Collection "Like the Ammo Container"