That sucks dude. Dent removal is a lot harder to do when the metal is creased. It is creased and dented in multiple directions too, one of the more weird dents I have seen. IMO, without the proper tools it will be pretty hard to get satisfactory results on your own.
Get an estimate at a shop, it will give you a better idea of what kind of costs you are looking at.
Get an estimate at a shop, it will give you a better idea of what kind of costs you are looking at.