David I don't recall from your previous pictures whether or not you have a radar arch. If so the arch make a good place to mount reels for the otter boards. Even without an arch mounting reels on the rear corners of the cabin will keep the lines out of the way. You can start by just putting a stationary reel of some sort up there and just wind the line on and off manually to give it a try. There are some stainless workers on this side of the pond that make custom reels, etc. I don't have reels on my C-Dory yet, if I am ever able to do more spring fishing or steelhead fishing I would go that route. I do use the in-line boards a couple of times a year. PS the Big Jon website sometimes has good sales on cosmetically damaged otter boards (their trade name for big boards), they sell reels also. No connection usual disclaimers, etc.
Regards, Mark