Having looked at a variety of options last year the F43van is a better bet, IMHO of course.
Specifically designed for our sized vans so it tilts downwards towards the van, and not the other way around like the 45S which was designed for small motorhomes. The F43van also enjoys corrosion free composite end caps and the fantastic magnetic couple for the crank handle and not the horrible hook arrangement of the 45. Similar price too.