Solar/ lights/battery/caravan lock (Mapperly NG3)

Hi everyone, some of you might remember my request a couple of months back looking for a caravan for my friend who has been living in one, but it's damp, old and basically uninhabitable.
Fingers crossed, hopefully on Tuesday we are finally picking a replacement caravan for him. Nothing special, but it's a million times better, dry, habitable, more modern, won't make him I'll and hopefully the oven etc will all work for him.
I'm looking for a few bits to help him.
Wheel clamp /hitch lock any kind of caravan security
Solar panel - anything, small usb to 12v
Solar lights or usb / rechargeable lights
Car / leisure battery
USB type Battery bank
Bioethanol table burner/heater!!!
Any old, spare, almost empty or part full bottles of calour gas for a caravan
 A clasp lock and padlock to add a stronger lock to the door.
Or any essentials along those lines you think might help
Can you help with this request?
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