RE: crossbow questions from a novice
If you don't want to spend much money, I would pass on the Scout and go with the Summit. It is a 150lb draw and should shoot about 260fps. It has been around for over a decade in some form or another and it just works. You should be able to locate a package version of that for mid $200s.
Then if she is serious about it and likes it, you can upgrade in a year or so.