For the six way toggle switch I would look to Freeway switches. They have various diagrams on their website.
Volume pots: the basic convention is that humbuckers are used with 500k and single coils with 250k. With your pickup selection I would support this convention as the Crawler is a rather dark pickup whereas the MMs are vintage flavored (i.e. rather bright). The solution is to use a 500k volume pot and use resistors to ground to bring the load in the other positions down to about 250k.
Tone pot: matter of personal preference. 500k isolates whatever cap you use further from the ground, 250k may have a more useful change of tone in the rotation.
Treble bleed circuit: also a matter of personal preference. I would get a few resistors (220k, 330k, 470k, 680k and 1meg, 1/8 watt is fine) and a few cap values (180pf, 220pf, 330pf, 470pf, 560pf, 680pf, 1000pf) and experiment. It also depends on the actual volume pot/pickup combination. In my PRS Custom, I am happy with just the 180pf cap. I added a 1meg resistor once but removed it immediately. In other guitars I use something like 220k in parallel with a 470pf cap. I test it with a crunchy sound and see whether it retains enough highs but still cleans up.
Cheers Stephan
