something like this:
https://www.ebay.co.uk/itm/Losi-1-18-Scale-Mini-T-2-0-ESC-Rx-2-4Ghz-Dynamite-280-Brushed-Motor-15/124295310221?hash=item1cf093eb8d:g:TC8AAOSwoSJe58nc
The plugs for the receiver are mostly standard. You should be find with that. The ESC and Servo will plug into with out issues.
So, you don't really need a 540 size motor. You could get away with a mush smaller motor. Try looking at the motor and ESC for the Losi Mini T. Those run for...
We are in the US, so that would be about $130 and be about 11in x 5.5in x 5.5in. That would be a 1/12 scale car.
In order to help with the ESC, we would need to know what type of motor you are building and what size? Is it brushless or a brushed? Is it a 540 size or...? How many turns, or...
Yup...
TNT is correct. The first thing I noticed was your battery selection will not work. you will need a 6 cell 7.2v battery. Also, you need to make sure your ESC will handle a NiMH battery.
A really good way to get help on this is to let us know how much you are willing to spend on your...