Looks awesome Pete.
To make it easier to move, how about some sort of temporary support down to the table with a bearing on the end.
If there's a flat area on the underside of the ram something along the lines of a cheap axle stand with a bearing on the top would do. Incorporating a heavy spring would allow you to load it up slightly by cranking the knee up without fear of damage due to jamming a solid strut in there.
Over-thinking it even more, you could do a few tests to see how much compression worked best, then mark the spring to be able to repeat it next time.
Steve
To make it easier to move, how about some sort of temporary support down to the table with a bearing on the end.
If there's a flat area on the underside of the ram something along the lines of a cheap axle stand with a bearing on the top would do. Incorporating a heavy spring would allow you to load it up slightly by cranking the knee up without fear of damage due to jamming a solid strut in there.
Over-thinking it even more, you could do a few tests to see how much compression worked best, then mark the spring to be able to repeat it next time.
Steve