I've just finished a CG Ultimate with a Robart fueling setup installed. My setup isn't exactly the same as yours but I think I know whaT THE Sullivan system is like. You might Mount the fuel dot on the cowl, forward enough so that it doesn't hit the firewall when you put the cowl on. I glued a piece of 1/8 ply on the inside of the cowl to give that mounting area a little more support. Make your fuel lines long enough tobe able to make your connections at fuel dot and carb and then carefully slide the cowl into place while coaxing the lines into position. No kinks. Good luck.