/cgl/ - Cosplay & EGL

Trying to get GF a surprise gift for bday and have no idea what Im doing. I was thinking some kind of mannequin since every time I help her with a cosplay everything is scattered on the floor and she cant try alterations without wearing it first. Helpful anons in the last thread I got lost in suggested an adjustable dress form instead of a mannequin.
Problem is I have zero idea about her sizes and have nobody to ask or spy for me. All I know is she's 5'5 with low end B-Cups and a 20-something waist (I remember her complaining about underestimating how small her waist actually was last ren faire and how many times she had to adjust her cosplay down.)
Do I have the right idea with this thing?

>>9919917
Parents are 5000 miles south. Roommate can't keep a secret. Guess I need to get educated in a hurry.
I DO remember when she was working on last weeks Ren Faire cosplay, she constantly had to let it in and was blown away that her waist was actually so small. I want to say she said..."20-something?" Mid 20s? Coupled with being 5'4 and having low-end Bcups I SHOULD be good with the small/med singer....right?
Again thanks so much for helping me