Will be interested in what you learn.

I would not screw into the sides of the neck pocket. The wood is quite thin and not super dense. I would be afraid that it would not hold the weight.

I attached a stick to the neck pickup cavity. Two screws into the side, and one attached to a piece of L steel to attach it to the floor of the cavity. The stick stuck out perpendicular to the body. Not super satisfactory as it turned out to interfere with smooth strokes across the body when painting.

If I had to do it again I'd use one or two long, largish bolts between the pickup cavity and the neck pocket. The bolts would pass through a block of wood maybe 3" long. I'd attach the block to a longer stick, either round, or square.

However I have not actually done this...and there may be a better tried and true method out there...

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