can it be made?

Sorry should have been more clear.

240v adapter/inverter with cig plug socket. Needed with evakools to run off 240v.

John,

I actually managed to refit the hella style socket into my 240v fridge power supply.

I have a Waeco fridge, which came (as mentioned before) with a universal plug and a Mobitronic power supply. The cig socket in the power supply was mounted to the shell with a small square plastic plate with a hole in the centre. I replaced the plate with one having a hole suitable for the Hella plug. You would never know it had been retrofitted.