Consider whether you need security bolts on the wheels. Since 2002 I have replaced mine with standard bolts after having a bad experience with one that seemed to be made from cheese. On the new Cali, Listers gave me the bolts for free - apparently the vans come from the factory with standard bolts and the dealer adds the security bolts. Consequently, their workshop has a box with hundreds of nearly new bolts in it.
I don't worry about my driving wheels being pinched because I park off road at home. I do have a sparesafe, although I'm not completely convinced I need it; I don't worry about the security bolt in the sparesafe because it's not torqued up as much as the driving wheels. It's also less likely to suffer from corrosion because it's tightened against a steel bracket rather than an alloy wheel.
I'm still on the look out for a good quality bottle jack, but I'm beginning to think that the intersection of my requirements is an empty set:
- 2+ tonne capacity
- light and compact
- short enough to fit under jacking points with a flat tyre
- extends high enough to change the tyre
So far I've managed three out of four.