Hi Jens,
I think BKP recommends .022 capacitors for bridge tone, and .047 for neck on Les Pauls (someone will correct me if I'm wrong).
The PG Blues comes with 2 conductor wiring, so I don't think you have any options on a push-pull pot. If you wanted that, you could buy a set of unpotted Stormy Mondays with 4 conductor wiring.