You have another F5, get a 50/1.8D for next to nothing, it should be good and fast enough for getting photos of your daughter.
If you can find a Hasselblad with a fair price, you can always sell it at no to little loss if you realize it's not for you. Obviously, it's itching you to try so just scratch the damn thing.

That's what I would do, at least.

Good luck!