Bill - I see you have a D750 and a Tamron 90 macro lens listed in your sig.
I'd suggest giving those a try to see what you can come up with.
I did a makeshift type of arrangement with my D7000 and an old Micro Nikkor lens and got pretty good results. I've since updated my 'system' so I can make use of my A7ii w/Micro Nikkor 55 2.8 lens and a Nikon slide copy attachment I picked up off of the Goodwill auction site. Haven't done much with it yet, but I did get one really good reproduction of a slide from 1974 that let me know when I do finally get around to spending some serious time on it, I'll be happy with the results.