Definitely get the book. They have some schematics for different cabs as well as detailed instructions on making a control panel. Based mine on this with some minor changes.
You won't actually be dealing with electronics. If you can plug in a lamp, tv, and a few other electronics to a power strip, you can wire up a keyboard encoder. Literally attach wire with quick disconnect, stick in hole on keyboard encoder, tighten screw on keyboard encoder, and wire the other part on the switch to ground. There are many people out there that will help you out and lots of examples. You won't be soldering or touching any microchips. The encoders all power through usb.
That way you can customize your panel to your best fit. If you have wood working skills, you have a leg up over everyone else, but you should know we all expect something bad ass now that we know you have a woodshop.
About picking up a cab in Houston, check craigslist every day. I picked one up an old DK style cab in Sugar Land a few months ago for 50. You don't need a full working one, just an empty shell. But building a cab is so much more satisfying. Nothing like telling your friends you built it and then when they ask what it plays, you can say everything.