Installing an H-Rail on Hobie Tandem Island

I'm brainstorming on how to improve the access to downrigger in the rear seat on my TI. Currently we have Scotty mounts in the side pocket and the downrigger goes there. It's a bit of a reach, especially when playing a fish. I want to have the downrigger right next to the seat. I think I can fit an H-Rail to the flat decking next to the seat. It's a strip of flat surface that is about 1.75" across, which I believe is enough room to bolt down an H-Rail.

Any thoughts on this? Anything to consider? This would be for a Laketroller, nothing heavier.
See the pic of the potential mounting location.

Thanks again!
Andrew

Found this online. I think this answers my question.

How’s it working? Have you decided to upgrade to a more capable DR yet?

I didn’t do the H-rail. Gonna stick with the lake troller for now.