Tailpiece measurement is easier with a bit of string or cotton. (I’m
Building the same kit) fit your tuning pegs and wrap the string around one. Then you can pull it from the peg around the back of the headstock and runnit down the length of the fret board. With a piece of masking tape secur it where you think the screw of the bigsby would go and then measure the neck and anywhere else you can to see if it’s centred. I was surprised that mine ended up bang on where the two bits of veneer met.
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