VKK Flight Suit Sizing Help

Hi guys,
I'm new to the forum and I am working on a short scifi film.

I am trying to get a VKK MIG Pilot Suit to modify into a space suit. Currently, I am struggling to find information about the sizing though. So far I have only found mixed answers from ebay users that sell the suits.

Any advice or tips on sizing? I am open to another suit of similar design if it is around the same price range. (about $200 or less)

I need one that is a smaller size to fit a petite female actress. One of my ideas was to look for a Chinese version because to my understanding they were smaller.

I know women did wear the suits occasionally. Here is some information on female soviet pilot Natalya Prokhanova. In 1965 she set a world for altitude when she flew to 79000ft.
http://redpilot.proboards.com/thread...g-female-pilot

Thanks!