I'm putting a p bass and jazz pickup in an old ibanez st980 body. This body has pickup cavities for some kind of active soapbars I believe. I want to route it all out into one " swimming pool" and somehow mount the new pickups..which I think a custom pickguard could hold? I'm thinking of renting a router..other than practicing on scrap, dies anyone have any advice? Is there a certain size router I should use? Any thoughts would help! Thanks..