Local labs here are terrible, quality wise, Praus doesn't do roll-scans, and NCPS is very far away. Elevator Digital is fairly close, but I don't know how their roll scans are.
I need these scans to print up to 8"x10" at 300-600dpi.
Elevator Digital has done roll scans for me. All of my recent posts in my apug gallery were done by Elevator rolls scans of MF crossprocessed film. Call them up and ask 416.406.3131 or email them info@elevatordigital.ca
I have them from 2k to 3k across a 6x6 frame. You need to call them and tell them what you shoot (35mm, 6x4,5, 6x6 etc...) and that you want to print them 'x' big on 'y' printer. I am more than sure that they'll tell you whether or not you'll get what you are after from them and at what cost. They are a pro lab so they won't be .15 cent scans.