Got the 73 in rail and multi light mount kit. It comes with a bracket for eurobrace tanks.
Took me a long time to figure out which one would work. This is pretty steady on the top. I'm going to build a canopy around it so you don't see it, but this worked perfectly for me. I wanted the option to go higher and the HMS rails can raise to 13 inches I think. The Reefing Unos have good spread and since the IM200 gallon is 30" wide, if I raise them I should be good to start with. I plan on adding some bars down the road when I need filler light if things get too shaded.