M Prod

Good day sir. I'm buying 2004 sea ray 340 with a full camper top, and one of the forum members has referred me to you to enquire about the installation of downriggers on sea ray. I'm afraid that I'll drill into a wrong place. Also not quite sure how to wire power outlets . can you provide some perspective/recommendation on how to do it right ?

Thank you
Roman

I do not have pics or dimensions right now but can get them this afternoon