RV Flex Armor?

We are finally ready to do the fiver roof. We have a bid from a reputable RV repair shop to remove the Rubber roof & install PVC vinyl ( not TPO). I see a figure of $170 per linear foot for Flex armor, but see no mention of the cost for slides. Do they do the slides? Apparently the roll on version company (RV Armor) no longer will do slides which still leaves you with rubber & caulking on those...). Thanks!