I'm gonna take it to a tech tomorrow. I know that some routing will need to be done, what am I expecting? I'm also curious about the switch, I have the stock 5way, I bought an 85 and 81 so I'm thinking they'll only be capable of 3 positions. Will I need a 3way switch or can I keep the 5? Finally, I'm assuming there's enough room for the battery in the cavity, but what about going 18v?