all you need is the sizes to play with to see whats best
note call up to mechanics up the rd and get some measurments
with 4 poster its H, x W, x L
with 2 post its H, x W and then you need to know internal leg stick out from post you can push back the legs but you still have stick out
It's getting cars in and out with a permanent lift in there. I'll have a better look when I get the caravan out in a few weeks.