5-th wheel dumper

[truckabilly]

Hi guys, I´m looking for details of the 5-th wheel dumping system. I´ve found some pics and vids but they don´t show too many details. I wonder how the whole thing is attached to the vehicle, how the hydraulic rams are anchored to the structure and where the hydraulic pump should be located.

Basicly, I´ve found two designs. This one:

... and this one:

I like the first one better even though it´s more complicated detail wise. I would appreciate more detailed pics. Any tips where to look for them?

Thanks.