Got a new Version of the Standalone Programmer:
parts rearranged to make button presses easier, away from the 12V/5V jumper
Target ICSP headers clearly labelled
Added 3.3V ICSP target header! Signals level shifted with '4050 to target board and '125 back to the Programmer.
3xAA battery powered, 12V battery powered (not-running vehicle), or 5V or 7.5V to 12V wallwart powered.
Still just $48 plus shipping & paypal fee.
More details at Cross Roads Electronics