C41 development is not really a big problem. You only need a temperature control (e.g. CPA/CPE/CPP/TBE-2), 37,8 degrees C. (+/- 0,5-1,0 (monocolor) C.)

I am doing it together with a TAS processor (Heiland) and a TBE-2 (Jobo). C41 kit : K54 from Amaloco 4X6 films, nice divided in 4 small bottles of C41 monocolor C41 developer. Very practical. Never scratches again, perfect results, same filtering with the same films on my CFL-4012 FEM analyser a.s.o.
I am happy I can do this for already over 12 years because a 120 rolfilm development is not possible in the direct environment anymore. I have to travel to a bigger city.

Best regards,

Robert