Ok so I've got the protos together, decided to go with 3rd order crossovers, sounds pretty good. Still working on the upper mid-tweeter enclosures, right now just mdf boxes, the crossovers have more components than I would like... actually let me re-phrase that... the values of the components are more expensive than I would have liked, even using a couple electrolytic capacitor and a couple Iron-core inductors, but it is what it is.
Right now for the parts I've got right around $350 not counting the enclosures.
So far they sound worth it.