Soon to be full timers but a question re: 6 speed gassers

My Wife and I are about to embark on a one year (possibly longer) full time RV trek and have a question regarding class A's. Prior to pulling the trigger on a purchase after the 1st of the year, curious if anyone has driven or own the newer Ford V10 with the 6 speed tranny. And if you did, is it a significant enough improvement over the 5 speed performance? We will be flat towing a 3,000 lb car. Love the floor plans of the newer class A gassers with the L shaped sofa and disappointed that the 2013-2015 pre-owned class A entry level DP's we've looked at don't have what we love in layouts. About a 150k max budget. Any help will be greatly appreciated!