we're in so cal too but had dd in 1998. This was in san diego. I think now it is around 4000. Cost was a 3000 which included prenatal, homeopathic remedies, and birth. We bought on the side, birth tub, birth kit (around 30$). Insurance (medical at the time) covered lab work/ultrasounds/backup dr. visits.
if we woulda chose a CNM, medical would've covered 1500 of it but we had lay midwives and so we paid it all out of pocket. NOw my friend here in Orange county said medical paid for all of her CNM so do your research.
BTW, dd (in above mentioned homebirth) also aspirated meconium as you said your son did, and had trouble breathing too. This was a homebirth and dd was totally fine, we just observed her. This is very handle-able (is this a word?? ) and I would not hesitate to do it again. My opinion was that if I had been allowed to birth in the position I chose, this wouldn't have been such a problem. (Midwives had me on my side due to high bp) she came out slowly and it was hard to push....so I would recommend making sure you can chose your own position. DS was born in May and since we did a freebirth, he came out while I was on my knees in 5 pushes. just an aside. good luck!!