Looks like Omega made some longer adapter arms to allow the Super Chromega II head to retrofit the D condenser enlargers. It also looks like I can just get two new longer rods from McMaster Carr. There appear to be set-screws holding the levers to the rods. I'm thinking I'm going to take the levers off the rods and put them on two new longer rods. Its a friend's enlarger, so I don't have it with me to check. I just need a plan for when I go over to install his Chromega II head. I have both the D3 chassis and Chromega PDF manuals and it seems like these rods are the only thing I'm going to have trouble with. Any additional info appreciated.