If I can qualify at 71, I'll go for # 6.  One thing I haven't seen mentioned as part of a tool kit that I find real useful is a Leatherman tool.  They're like a super compact mini tool kit with a knife included.  I've carried one of those around for years when riding the 90.

While I haven't had the near freedom XL has, I've seen a lot of our country from behind the wheel of a camper hauling '69 F 250 that I converted to diesel in '80.  Ran several 100k with it before replacing it and the camper in '94.  The new truck is a '89 Dodge W250 Cummins with 250k on it now.  Spent 6 weeks in BC, Yukon, and AK with it last Summer.  Like XL, I love going "there" and staying "out", but like Nate it's nice to have a "termite nest" to return to.

Steve