Gavra: I think 50/50 with a mortgage for the couple is more like it. At least in the Chasidishe velt girls do not need to “buy” a choson. I’m sure there are exceptions, but it’s not the norm.
In fact, at least in the US, Chasidishe girls have an easier time finding a shidduch and can save some money if working to help cover wedding expenses.