It's a 1982 german import t25 pop top, and it has hot air heating, 3 way fridge, mains inverter, sink etc, but I have no clue as to how to use any of it properly, before I go and set the thing on fire I was hoping someone in the Dover/Deal area may be able to show me the ropes in exchange for tea, coffee and biscuits?
The lovely lady I bought it from tried to explain what she could, but I would rather know how to use it safely.

Any help is appreciated!
Steve