Does anyone know the best place to sell a Floating Slider with a custom trailer?

Me and my Dad built this sick slider a few years back. We want to sell it, but I have no Idea were to list this thing so it would get the most views? I know if I put it on the classifieds here people are not going to go look for a wakeboard slider. lol

Any Ideas?

Here is a general idea of what it looks like.










As you can see we designed it to be individually plumbed in each float underneath, so you can float the slider at your desired height.

We also had a custom trailer designed for the slider for transportation.

But again, we don't know where to post it?

Thank You for your help