i aint read all this post, but i have had my jap car in dry storage for the last 3 years, the car is still as i left it
here is what i do
Remove battery
leave handbrake off
leave in gear
on axle stands all round
covered up using a custom cover, trust me dont use a cheep thing, you need to pay 100 quid plus for a cover, especially if your leaving it outside, use a cover like one on here for example
http://www.coveryourcar.co.uk/i cover my engine up under the bonnet with bubble wrap, and spray lots of WD40 on the gearbox, throttle cable area etc
start up every couple of week, but remove battery again once done
also i leave a rear opening 1/4 window open to flow air in the car (if not fungus may kick in lol)
thats what i do, but as said earlier, mine is kept in a garage