Baby Q slider

Have finally picked up a Baby Q and intend mounting it in a slide to slide it out over the tailgate for use similar to the fridge.

The only problem I have come across is that all the slides I have found slide length wise same as the fridge and I would like it to come out sideways so I have the rest of the tailgate to the side to use instead of it opening to the side of the trailer with nothing to the end of it.

Has anyone come across such a slide either specifically for or that can be adapted to suit, or even someone that can make to order?

Trying to avoid making my own due to time restrictions and the cant be bothered syndrome after working 2 weeks at a time.

Thanks.