Thanks all for this advice, I have a set of gauges someplace in the toolkit and will get them out to do the distance with.
As for my girlfriends hairspray My wife of 30 years doesn't use it, however I do for my beard when I have important meetings so we have some to try out.
I have some pure acetone now and I also got some glass plates 2mm cut to size for the bed (cost $8 Australian from a glazier)
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