On incidences, I am not sure of this forums rules on product names etc!

I use one those of those laser style incidence meters. See the Oz build thread. You then don't have to get the fuz square to floor/surface all the time. You can set the meter on one surface, establish a reading, and then move it others without having to change anything and it gives you a good, relative reading.

After some debate with myself and trial fitting stabs/wings/motor, I took one of the paint lines on the fuz as my reference and set everything from there.

David