I also can't help you with your questions. Gary has given you good advice. The only suggestion I will add is perhaps you should visit our Vintage RV Forum
and post you questions there. I believe you will have additional response there.
Don & Bev Morgan Weyauwega WI, 05 Itasca Horizon 40KD, 400 HP Cummins, Delorme GPS LT 40, Toad 07 Saturn Vue AWD, Air Force One, TST 510 TPMS, Mayor of Weyauwega 2007 - 2013, Waupaca Co Board Supervisor 2010 - 2014