Yeah what she said. Becky is around the same height as our heroine but if she wasn't I would have insisted on cutting it down.
TBH I don't know what Zam's movie rifle length is. I tend to look at photos and work out ratios of things. If you make it so the rifle extends about 6 inches or so above your GFs head it would look cool.
Remember that the rifle butt will have a silver plate extended about 0.5 of an inch, so take that into account when measuring her up.
The pipe we used was standard chrome plated copper plumbing pipe at 22mm. I need to check that though so hang on before you buy it. may have been 28mm? Whatever it was it just sat nicely in the flintlock stock
It's normally used in bathrooms, that kind of thing 
Both pipes are bathroom plumbing actually. The lower one too
PS: no problem on the help dude, please ask if needed. I'd help anyway but seen as your a clean TK too, I'd help twice
