Hi SAB,
There was quite a discussion on building one last year that the carbymaster was involved in but I'm not sure how to find it. I was going to make one ( I did a timber prototype to make sure it would work, then I built a big heavy one for a mates factory and I set that one up so it was battery operated hydraulic). That was very heavy duty but a lighter version is quite possible using the same measurements but it is a lot of work. The other alternative is to use a couple of timbers as ramps
