Rotisserie/Toaster Oven Coffee Roaster (Pic Heavy)

Mike - very nice, professional looking set-up there.
A question for you... There is this Set It & Forget It rotisserie oven sitting unused in our kitchen. Well, after seeing your invention, the wheels started turning in my head! The question is whether roasting coffee in the rotisserie would result in residual aromas and flavors in the rotisserie, should the wife decide to someday use the thing for a roast or something??? What does your experience with yours say?
Thx -
RR