Figure less than $1.00 per click after your "potential" sale. That is not so bad.
My 6x7 shots with Fuji Astia or Kodak Portra and pro processing (develop only, no proofs) came to $1 per frame.
Then I would have 2 trips to the lab, time to cut film, cost of neg files, filing cabinets, and all the work to scan.
Plus my $2,500 Minolta Dimage Scan Multi (1180 ppi) depreciated to about $500 in 3 years, so figure another $.20 per click for the scanner.
Cheers - happy holidays!