One thing to remember is that winding a pickup to 4.8k with 43 gauge wire is going to have more output than a pickup wound to 4.8k with 44 gauge wire. This is because wire has a hire resistance per foot as the gauge increases (diameter decreases). Therefore, you get fewer wraps of 44 gauge, resulting in lower output. However, Ricks and Danos had famously low output pickups, which is one big reason why they are so sparkly clean (more windings will tend to make high end roll off). Also, your capacitor won't matter much to your circuit as long as the pot is on 10. 250k pots should be fine, but if you need more high end, swapping for 500k's is easy.
P.S. Welcome aboard, the addiction has just begun.