1880 Downrigger question

Im planning on buying an 08 1880 which has rails on it. I am trying to figure out how to mount downriggers on it as the rails go all the way back to the fuel fill caps. Anyone have any pictures of what they have done to rig the boat with down riggers?

take a look at this post. I believe these were on a 2100 but it should give you somewhat of an idea.

I mounted Cannon deck plates between the rail end and the cleat. Then I put the downriggers on 4″ swivel mounts. The set-up worked great.

http://store.cannondownriggers.com/products/324564/Deck_Mount_Plate