Wheeled trolleys for hulls?

[Kris]

Has anyone here build something similar to these wheeled trolleys visible here:

https://youtu.be/uDQdjGbE7Iw?feature=shared&t=367

I actually need to build something quite similar to pull my Pahi 42 out of the water at a gently sloped ramp as it is too wide for the normal boat lifts here.

Hints how to build it appreciated.