I have an RG7321 that I got in 2010, the stock pickups are horrible. I want to add Dimarzio pickup(s) and am looking at the Titan (http://www.dimarzio.com/node/8560). I don't even know where to start. Dimarzio doesn't give any prices for their products (weird) so when I go to long & mcquades to get a price I won't know how much they charge on top of the flat rate. Also, do guitar/music shops usually do installations?