It really is not hard to figure out, for real instructions I'd suggest finding the magazine if your really not competent at figuring stuff out and need to be shown pictures.
You could use any ESC, but small is better. So they used a micro ESC for a heli or airplane. For a battery, you want a LIPO that has good capacity since it will be starting, and running your ez-start.
You need to take apart you ez-start handle, remove the push button switch and bridge the connection. You then use the ESC to power the ez-start circuit board, which will power the ez-start motor and your glow plug. It requires you finding a place for the entire ez-start circuit board, but once it is cut down and sealed in shrink wrap it is somewhat compact, but long. You want to cut vent holes in the shrink wrapped board to let the resistor and heat sink on the board to vent and not burn the wrap.
The third channel on the radio is set so off is neutral in the ESC, and on is full forward throw on the ESC. You flick switch, ESC powers EZ-Start, which spins engine and fires glowplug. ESC is switched on which powers your Rx through the LIPO pack (you remove your existing Rx pack.)
It requires you to be semi competent at soldering, and able to wire and setup a 3 channel radio.