. Just measure the correct length to the bridge saddles to match the neck scale length. If using a wrap lightning bolt bridge there is a two to three degree angle from the bass side bolt to the treble side bolt. Use (cotton) strings on E and e to align the bridge where you want before drilling. I put masking tape down on the body to do all the drawing. If the pickup pocket(s) are cut already the guitar will be a little more bassy than typical because the pickups will be further from the bridge saddles. Which will be good. I have a LP Special Junior that I rotated the bridge pickup so the screw side is on the neck side now, lowered and raised the screw poles, and it's a lot more beefy. .