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Alternate passive wiring for a Yamaha TRBX 305

I have a Yamaha TRBX 305. It has two humbucking pickups with an active pre-amp. 4 knobs total, volume, blend, bass, and treble. It also has a 5 way strat style switch to change the mid range frequency curve.

I really prefer passive basses. I thought about trying to sell it to buy a passive bass, but I really can't get a lot out of it and I do like the bass a lot.

I was thinking disconnecting the pickups and removing all the electronics. I have to look but I assume the pickups are four conductor. I haven't been able to find anything about the wiring from Yamaha.

I would like to each pickup to a push-pull pot for series/parallel connection, and then wire a volume and a tone for each. I would fill the five position switch space with a telecaster style 3 position switch.

As far as I can tell what I basically want is Les Paul style wiring with added series/parallel for each pickup. I would use a telecaster 3 way switch instead of the Les Paul style switch.

Does anyone have a wiring diagram for something like this? Also, what value of capacitor would be best for the two tone knobs? I would prefer to use a different value on each so that I could get a wider range of possible sounds. Finally, what value of pots would be best for something like this?

Thanks for the help.
 
There are only 2 wires from the pickups... White and black..and it's potted.. so you can't wire it in series or parallel... I guess the pickup is wired in series... The bridge and neck pickup measures 5.75k and 5.70k respectively buh it's louder than my ibanez and passive jazz bass in passive mode... I had to ditch the preamp and installed an ibanez talman 3 band bass preamp with active passive slide switch and a 3 way mid frequency switch.. kind of more versatile now and not being restricted to just 5 settings... It's very loud in passive mode.. lots of low end and low mids...
 

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There are only 2 wires from the pickups... White and black..and it's potted.. so you can't wire it in series or parallel... I guess the pickup is wired in series... The bridge and neck pickup measures 5.75k and 5.70k respectively buh it's louder than my ibanez and passive jazz bass in passive mode... I had to ditch the preamp and installed an ibanez talman 3 band bass preamp with active passive slide switch and a 3 way mid frequency switch.. kind of more versatile now and not being restricted to just 5 settings... It's very loud in passive mode.. lots of low end and low mids...
I'm aware that this is more than a year old, but I would love to do the same, on a budget. I hate active-only setups, because of reasons. Could you please give some details on how you did this transplant? Was there any soldering involved? Cable-cutting/reattaching etc?