Do you have benches or box seats in your boat..........either way you can take a piece of aluminum sheet metal and secure it to the gunnel then bend it at 90 degrees and secure to bench or seat box.....bend it so there is a flat horizontal surface large enough for the DR mount then 90 degrees down to the seat......use stainless screws,bolts,nuts and you should be in business....If you have anymore questions, I am sure I can draw something up for you.