1.) Field Charger: $44.99

Or, a second set of batteries for your plane and radio: $49.98

2.) A buddy cord ($10.99) allows a second radio to serve as a buddy box. No real need to buy a full "dummy" buddy box.

3.) I use a bayonet and six feet of 1/4" cord. The bayonet has an "eye" to tie the line to and I slip a spliced loop on the end over the handle. The splice slides around the empennage when I turn it loose.

4.) Good excuse to buy a Futaba 9C. ;-) Or, a kitchen timer, Casio or Timex watch, or stay three mistakes high and land 'em dead stick.