As for the platform today ,
I`m completing the last task drilling some holes in the pivotsupportplate .
This weekend I will mount all the small bits and secure the Cessna to the platform.
Hydraulics isn`t that easy,
You have to consider High pressures and flows, also dedicated electric valves and powerpacks are not cheap .
And because my setup is on the first floor ,I need a dampproof floor ,concrete sucks up oil if spilled and gives a nice stain on the ceilling in my livingroom.
Resulting in a sleeping place under a bridge as my wife will throw me out

But it is an option
I will take some measurements with a loadcell when the platform is finished,
so I know excactly wich forces there are on the platform and take it from there.
Mounting electric or hydraulic powerplant and lines is easy for me . as I have more then 20 years of experience as a mechanical engineer.
Regards henk