I am looking for suggestions for a roller transport processor for my home darkroom. I would like one that does up to 16x20 and can switch between RA-4 and Ilfochrome fairly easily. Obviously the more reliable and easier to use the better. I don't think I need a wash or a drying module, but it would be nice. Also, one that holds a smaller amount of chemicals is better for me because I don't print a lot at one time. Any suggestions?