I've been able to borrow camber gauge - the rear is showing exactly 2 degrees negative which will go a bit past 2 once all the weight is in.
I plan to set the front camber at the week end - but to what? Are there any nominal recommend settings anyone knows that would be a good start for testing?
Slightly related, I think this is the type of suspension on the front of the Sportster:
http://en.wikipedia.org/wiki/Short_Long_Arms_Suspension
I could get my head around why the camber / castor etc changed so much, but that sort of explains it in basic terms.