Regarding that project for the paintings recreation thing . . . How about shooting on 8x10" color neg? There would be fewer contrast and lighting struggles, and final images could go directly to RA4 paper. An analogue process from end to end with potentially gorgeous final quality and still available using US sourced materials, if that makes a difference to the sponsors. That way you get to do the project just before the end of the materials instead of just after . . .
While it might be possible to replicate the look, Kodachome had a special look to it that when everything came together in terms of lighting and nuance, it looked like an Old Master's painting.
So in a way, this was a Kodachrome only idea. I am ready to move on from it for good now given the tone of this topic...
"I always put my fb prints in a filled aquarium on the wall.
No problem with dry down times..." APUG'r Willie Jan