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Looking good. The mockup looks great.How are you planning to set the neck angle?
Once you have located and marked the correct position, a couple of small nails (smallest you can find) tapped into the gluing surface of the bridge and snipped at about 1-1.5mm will help to prevent slippage when clamping. There is also the 'stick a couple of drill bits through string holes' technique to prevent slippage also.
Wood glue works best with appropriate clamping pressure and perfectly mating surfaces that are from a blade rather than abrasive. Also, the practice of scoring the gluing surface will not improve adhesion, for this reason.
If I may offer a piece of advice, for the bolts, try and find ones that have a hex head, as an allen key would be much easier to manipulate through a soundhole than a flat-head screwdriver.
Great build photos
If I may offer a piece of advice, for the bolts, try and find ones that have a hex head, as an allen key would be much easier to manipulate through a soundhole than a flat-head screwdriver.Great build photos Adam