Thanks to HD-Dudes info I was able to complete the installation.I ordered the spacer from Rivera for the derby cover and though it seemed to have enough clearance w/o it i put it on anyway.Despite the 40 degree temps on Saturday I road tested it.only went about 12 miles but it seemed fine,no slip,no chatter no vibrations an no drag.Just ordered floorboard spacers from Harley Goodies as Soos is outof stock.Next is a chrome oil filter mount and braided steel lines for the oil cooler,Billet pushrod tubes.and chrome handle bar switches.New floorboards are on the list as soon as I decide what I want.I'm leaning toward the tapered boards from the Softail deluxe,with matching passenger boards.Another choice is the Kury ISO boards, although I have not seen a set in person the look good in the magazines.Again thanks to all who offered advice on this project.Although my Road Glide is not a CVO I think this site is the best Harley site on the Web. Wayne