No, Quinn isn't available.
But I have found the other merchant you mentioned.
Am now level 38 - I never imagined the game was so long! I have completed two levels of the Druid's place, and have made my way into one of the lower areas. Don't want to say too much since there are now other people in this forum who may not have played before. My main problem is keeping Sir Roger Templeton safe! I have reloaded twice now because he got killed - does it affect the game if he does? I wouldn't have taken him with me - I like to work alone - but there were only unchivalrous options to reject him, lol, and it seemed a bit unkind... sheesh! being kind to pixels!
Where is your character currently?