Yeah, her reasoning behind wanting them (besides being pretty awesome) is that there was a production (or film?) in c. 1992 that had them and she loved it.
I don't know for certain if they'll have them just yet, but we should find out on Saturday.
Hope you do come, but like I said, there's always another production next term.
I might come up and see your Pinafore then, late February should be easy to manage, middle of term, just a day or so. I'll definitely think about it.