Hey, Mark,It's all there. Go look at the parts list. If you can live with two inputs (a toggle input switch), the switch is an ElectroSwitch DPDT center-off toggle from Digi-Key whose part number is listed. The main tranny is an Amveco toroid, likewise, which shifts for the princely sum of ~$15 in onesies-twosies. If you need your several inputs, use the Elma 04-1261 from Percy, $34 (plus the knobbie of yer choice); it's a dandy.
Go look at the parts list, confoun' you. I spend hours making these things up and verifying that they're accurate.
I'll have a better expo of this piece on my site in a day or two, but meanwhile,
Yer Obeediyunt Servunt,
Poinz