Using an hah basenode to program a blank atmega328p chip

So, having acquired a some blank atmega328p chips and several basenode kits, I wanted to find a way of programming the blanks without buying an ISP programmer (yes I know they only cost a few £'s but that wasn't the point).

After reading all sorts of information I was intrigued by this https://jeelabs.org/2011/05/17/switching-to-optiboot/ which shows a jeenode programming a jeenode.  I then stumbled across this nice diagram

So I wired two jeenodes together with all pins going to the same except pin 16 of the donor chip going to the reset pin 1 of the receiver chip and followed the instructions in https://www.arduino.cc/en/Tutorial/ArduinoToBreadboard on burning a bootloader.

Hit the button - and it worked!

Here's the back and front of my rudimentary programmer.  It set fusebits to FF DA FD CF.