I should adjust my observations since I had not noticed that you removed your passengers from the equation previously.
If your preference is to meet these challenges alone, then I can not critisize you since you are endangering no one else. Don't get me wrong I still think you're bloody mad!
I would remind you of a couple of things though... green lanes are not meant to be extreme challenges. Occasionally they may geta little soft but if they are really bad then (without wanting to sound like a ****) you really shouldn't be driving them. The second thing is quite simply that there enough green laners around the country that wherever you go it should be possible, with a small amount of planning, to make sure that you have phone numbers for local laners who have the necessary equipment to get you out of trouble. Of course that may not be a winch or bridging ladders, but a fanbelt or gallon of water!
The number one rule about not going out alone (with a few exceptions) is probably the best safety advice anyone is ever gonna give you.