Well, most large enlargers 5x7 and bigger - Some would be easy to fit to, and some more difficult depending on the flatness of the stage. The Light panel is 280x280 mm and that needs to cover you negative, behind the panel you need about another 65 mm for the chassis going towards the column. The closer the light panel is to the negative the better. The you will need some sort of square frame with a light seal (as you see in pictures) to seal the head to the stage. I saw you use a L1200 with MG500 5x4 Head -Well that is more difficult to fit than for most large enlargers - I took most of a weekend to make up good looking brackets for my Durst 1200 with the smaller 5x4 MG500 but the 5x7 was much easier with the 500HLE as it has a flat stage and there is loads of room for alignment error with the 280x280 light panel to 5x7 carrier. The Durst 1200 needs very accurate alignment as the 5x4 light box is no bigger than negative.