Working on the Budget

It's difficult figuring out what the breakdown of the budget is going to be when I'm having trouble figuring out what stuff is going to cost.

What I know fo'sho: the budget is about $5k, the ceremony/reception location will be about $2,600 and I have about $2,400 to monkey around with.

Technically, I have a dress I can wear that will do just fine and thankfully, it was only $20 and I'd probably be happy with it if we were having a beach wedding (that's what I snagged it for), but we're going to be in a totally different setting and I'd like something a little less casual, you know? But I don't want that special dress to cost me more than $400. And I've been keeping my eyes on eBay, trust. I think I may table the SERIOUS dress hunt for November/December/January.

And just how much does a tux run? JR has already stated (quite emphatically I might add) that he will NOT wear a rental. Can he get a nice looking ivory tux for about $300 including shirt, vest, tie, and shoes?

And that bouquet - just how much can I anticipate it costing? I've been seeing prices range from $20 to $120 ... and that's for silk flowers!! I don't even want to know what real flowers would run
.

Then there's photography.
And printing.
And decorations.
And the cake. Just how much should that thing run anyway? Surely it shouldn't be 1/5 of my budget should it??

Ludamercy. I'mma need a job and a therapist.