Hello, I am building a bass and need some knowledge. It's a Danelectro Rumor body that currently has two P bass pickups. 1 Volume pot and 1 Tone pot, but no selector switch. I'm going to install a three way toggle switch, new pots (and might add a blend pot) but I do not know what value pots to get. It currently has 500k's, but without a toggle switch it is just way to much power running two pickups wide open. So... watcha guys think?