Oh, you are more than welcome. I know how it is to be strapped for cash. I am glad to help anyone when I can.
I measured the costume. It has a size 4 on the tag inside. My dd was 4 last year when she wore it but it was a little stretchy and I thought I might fit a small 7 year old....So, here...
I took 2 white curtains (about 3" square) and cut holes in the center for the neck. Put both of them on my daughter and adjusted the fabric to look like a ghost outfit. Then painted her face white. That was the most simple costume I have ever made.
What size is your daughter? If she is small...