When you say "copy setup" what are you referring to?
Lights equidistant & @ 45˚ to the artwork. Polarizers over the lights, correctly oriented. Polarizer over the lens, correctly oriented. Camera parallel and square to the artwork. Lens @ f8 - f11. Camera is color calibrated with Adobe's DNG method or with a quality ICC profile if using Capture One.
Any recommendations on great-value dedicated film scanners?
Starting in 1992, I used a Umax, then a Nikon, then an Imacon Flextight, then finally, in 2001, a Howtek drum scanner. Nothing compared to the Howtek in sharpness, shadow detail (DMax), or smoothness of tones throughout the DMin-DMax range. Mounting film is where most people balk and go for a CCD or flatbed scanner. But once the mounting is learned, and the software is learned, there's no turning back.
Scanners:
AztekNikonImacon