I'm of the philosophy that if you want something done right, you do it yourself. But "hybrid" printing
via scanning onto actual chemical paper, can be done from either transparenies or color negatives,
depending on the specific skills and equipment of the lab involved. Both laser and Chromira type printer
are involved, typcially onto an RA4 type paper (or polyester-base like Fuji Supergloss, similar to Ciba
visually). Ciba itself is virtually gone as an option. I don't know anyone around here with an $80,000
printer - they'd consider something like that a toy!