Demountable camper group

Did anyone ever come up with a solution or purchase a spare leg. I have photos on Facebook group of the busted internals on mine.
Thanks Paul

Happijac 4500 legs - I am replacing our front jacks with the new 4800 heavy duty ones and our old jacks are free to a good home if anyone can make use of them - one of them binds when raising the camper and binds when lowering and squeaks - but could be ok for spares - the other is in good condition, very smooth raising and lowering - I will keep them for a few months and if no one is interested I'll dump them. We are touring South West Wales for the next few weeks - then after the Annual Gathering making our way up the west coast of Wales - of course the usual first come/first served arrangement - sorry forgot to mention, no motors with 'em.
John