Anybody have some drawings for this type of hoist?
Platform the size of the cockpit of a 7, with a single hydraulic cylinder that lifts the scissor

Something like this?

http://www.automotechservices.co.uk/garage_scissor_lift_as-7630.html

That is the item.
In Rands that is R14 000 I am sure I can manufacture a 1 ton version for a quarter of that. No fancy electronic pump.

So any drawings? Sure it can work for a lot of us.

another novel way of using trailer bed as a working platform

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CAR TRANSPORTER TRAILER / WORKING PLATFORM for HISTORIC / KIT / RACE / TRACK | eBay

This might help http://www.strongmantools.co.uk/images/PDF/Tamar.pdf