gazzer,
many moons ago when i did my ppl flight test (which i passed), i was met by my examiner .
i am a robust 14 st paddy,examiner was a big manc boy about 18st odd,day was about 22oC and not a puff, odd for our green isle, was bricking it as i thought out of limits for a r22 and thought the first part of test to cancel. anyway long story cut short, extremely long running takeoff, all the usual stuff ,pretend autos,hover autos etc, while watching manifold press having a fit in front of me.
passed test no prob.
just go for it
post back here when you are done
oh, and have a look at all the incoming tut tutters when they finish working out the weight and bal issue
have fun!