"I'm assuming in your discussion of printing old photographs, you mean you are printing scans of the old photographs. If so, that would seem to suggest that however they are being scanned, they are not being colour corrected in the scanner software, but just digitized "as is". You can do it that way, but you'd make your imaging life easier by doing elementary restoration of faded photos and colour rebalancing in the scan software. SilverFast, for example, has user-friendly tools designed to do exactly this and they usually work well. Then you bring a more correct digital photo into your hard drive and you need not bother about Lab conversions for doing subsequent refinements in other image editing software. Nor do you need a Lab Luminance layer for satisfactory sharpening."
I rarely use a scanner, except for the sake of expediency or for noncritical work.
Years ago, I customized an industrial copy stand for reproducing art and resuscitating antique photographs and documents. I shot with a 39MP multi-shot Hasselblad back fitted onto a custom pancake camera that accepted Schneider Digitars with electronic shutters.
I got rid of the Hassey/Schneider stuff years before I closed my business. … Believe it or not my $999 Pen-F in 8-shot mode is almost as good and in some ways better than the Hasselblad. The inconvenience with multi-shot is it takes a minute to cycle through one capture, and I don’t like beating up my Elinchrom strobes. So for lesser demanding work, the Sony A7r II is fine.
The stand is located in a neutral grey space, the ceiling is covered with black velvet. I generally use two Elinchrom monoblocks locked down on C-stands. 12” X 12” polarizing gels backed with heat absorption Rosco filters clamp onto “magic arms” and polarizer filters are at hand for inserting on the lens for cross polarization. Whether or not to cross polarize depends on the application.
My backlight setup is pretty slick. I used to use an Elinchrom Quadra / diffusion box setup. I’ve replaced it with a continuous current LED circular light. Color temp and wattage are adjustable, the illumination is virtually even across a 7” X 7” field. The CRI is > 96, R8-9. I mostly use the Sony for backlit work.