I did this once - I had seven AG dolls and sold all but two. I also sold tons of furniture - I had six complete school sets, a complete birthday, and a complete bed set. It took up a LOT of space, and I was kind of feeling like you are now so I purged all but the really special items. I really, really regret it now, although at the time I felt like I had to do it. I only have three dolls now and I can't wait to get all my old dolls back, plus the new ones that came out after I sold my collection. They definitely mean more to me now. My suggestion would be to give Kirsten to your mom and box the others up - put them in the attic or storage for a year or two or three - however long it takes for you to miss them - and if after a few years you really don't care to have them back, you can sell them then.