That, my friend, is some serious dedication. Once upon a time, I would have done the same.I have a route in the mountains, lots of hills. I I pack12 70 lbs sand tubes, wrapped in duct tape, for weight. I place them behind the hubs, 6 per side, an tie them up with ropes.
I also carry a small one-hand pick hammer that will bust one open for a sizable serving of sand on the road when needed. Saved my &@$(/ once now!
I also carry a spare pair of gloves just for chaining up. Nothing worse than frozen fingers and wet gloves.
can of tire fix flat in case you notice one gdtting low on tire pressure.
Or, a cheap 12 volt compressor.
Might save a road call if a nail gets in a tire.
For a while back in the mid-80's, every truck here had a can of that crap in it. I don't think anyone tried to use it, and when the cans started getting punctured from bouncing around, they all went away.What would you plug the 12 volt compressor into------don't tell me the trucks actually have a 12 volt cigarette lighter type receptacle in them now days. Personally I've never had much luck with that Fix-a-Flat crap. It might not work the best when its 20 below.
Unless you are also needing that for a club, they make some really good lights that will fit in your shirt pocket.