But I print B&W images on classical barit paper, without use of filters. And I wish to have an opportunity the print of colour images in my old enlarger. This problem is slightly easier.
For colour I require YMC if I "isolate" necessary colours from white (substractive method). I require RGB if I "collect" white (additive method). In Fuji Frontier and similar systems use RGB. For this reason modern photographic papers are adapted under frequencies of LED. It also has pushed me on idea to use LED for the print in colour.