ask around at your local bike dealers,many of the older hydrauilic types are being replaced with new(er) pneumatic types, some of these have a remote control (like a tv handset) so that you can raise or lower from wherever you happen to be standing, no good if you dont have a permanent plumbed in air supplly, and the old hydrauilic ones go for a reasonably low sum, I tenederd for seven units a few years ago and was one of only seven tenderers,(son Tom actually) but from a workshop where 14 mechanics all "wanted" one, I/we tenderd for one unit and seperately for all seven, this was Pizza hut central workshop/repair unit, the foreman/manager was so pissed off that only sevn of the fourteen where prepared to put there money where their mouth is, he said that all seven of us could have one for free!
and stuff the others, result!
When Bat motorcyles closed about six months ago they were "evicted" and left all sorts of things behind, these were all given away by the new occupants of the unit in excahnge for favours, I did some galvanised air lines for my pal Grizz and he was given an almost new ramp FOC.
So they dont have to be expensive.
CLEM