The chances of finding someone who has bought these specific items is very low.
But generally, Chinese manufacturers tend to cut small.
If you have any facility with sewing at all, it is easier to adjust a garment that is too big than one that is too small.
Actually, many larger shopping malls nowadays have a little shop (the ones here in Ottawa are called Stitches) where they will do alterations for a reasonable price. Or you may find a seamstress at a dry cleaner or even working independently.
