Thanks Max.
1. How do i find out what receiver I need for this radio and where do I get one?
2. I can work out which wire work which functions on the tank, but how do I know which sockets on the controller module work which functions?

Alternatively I can purchase 2 x TK.7.0 controllers and a suitable transmitter for about £100. - see Aliexpress link below.
3. Would I also need a separate receiver for each tank, or would that be all I need.

https://www.aliexpress.com/item/1005...Cquery_from%3A