Seat Slider for 14' V

Have a 1974 14' SeaNymph and due to the design, the back bench is close to the transom. I have a 15hp tiller and the handle is long and prevents me from mounting a seat in the middle of the boat, I also don't want to mount it on a side because my transom trolling motor wouldn't be reachable. So, I'm looking for a seat slider, the ones for john boats are too wide, the bench seat is only like 8 1/2" wide. I will screw it into the bench and put a swivel and put if on my seat. Thanks for advice in advance!

Does anybody have any type of slider device on their boat????

Check www.akmccallum.com They MAY have something you can use.