Jeesh... didn't realize mentioning Jeep would bring contoversy. Sorry, didn't want to distract from the Subaru project!
Anyway... Paul, been curious on what you are packing for spares and supplies. Will be interesting to see. Going to be a tough tradeoff between being fully prepared vs. too much weight. Probably a very good move going with the wagon, space is going to be an issue to I bet. By the time you have 2 spare wheels, probably some control arms, a whole lotta tools, consumables (oil, coolant, filters...) and who knows what else it is going to get tight in there. That is if the plan is still to not have a chase vehicle that can carry some stuff for you.