#3
One Hundred Million Dollars, muwahahahahahahahahaha.

In all honestly I don't know. But it would very if you're going to get it done professionally, call your local store and ask.
#4
look on youtube and it will show u how either by just using a cable and switch and not actully installing into ur guitar for about 10 bucks or it has detalied routing instructions too and where to buy the items
#5
if you have a lp style guitar turn one of the volume knobs off, keep the other at 10. i found that keeping the tone at 10 helps also on the on pickup. once you've done that play the note and rapidly switch the pickup selector switch on and off. this is what tom morello does. if you do this too much you could wear out the switch, but if you do thats a cheap replacement.