I did make one mistake, I tried winding one toroid with the wrong size wire. Luckily, I noticed it in time and re-wound the darned thing with no problems. Look at the pictures, and follow the instructions. Your radio will work. I know this is true, because mine did.
Alignment is a snap, and no special tools or instruments are needed.
The best part is how well, the receiver works. I swear, the receiver in this QRP Transceiver is just as capable of pulling weak signals out of the muck as is my regular rig. I've got an Icom 735, which is a good radio even by today's standards. The Wilderness Radio NorCal 40A is a REAL rig, not a gimmick or a toy. I was on the air before the last solder joint had cooled and made several contacts thousands of miles away using my barely marginal vertical all-band antenna.