throw it in the bin and get a trolley with a block of wood m8. the last thing you want is it to collapse in mid air when you pulled the wheel off.
Keep an eye on halfords, I got their 4x4 quick lift jack for under £50 a while back! normal price seems to £89.
The original Bilsteins are a bit wobbly... If your jacking points are fine & you've a few bob, the Brazilian bus scissor jack works really well. Better than humping other stuff around.
:hijack: Even stupider question: Where is the Jack? Where is it stored in a bus? Looked everywhere for mine and can't find it. Kind of thinking that's because I haven't got one. Unless I'm missing something very obvious. If so, where's the best place to buy one / what's the best to get?
get a bottle jack and store it behind the seat or under the rear seat. compact, lightweight and high lift