That is crazy boi....$750 for a valve cover..man, I would suggest just getting it powder coated if ya dont mind having ur car out of service for a few days while its bein done. cant help ya out on where, but either get it powder coated or sand and paint it urself with some valve cover paint or high heat paint.
I painted my valve cover red..took me 3 hours from start to finish including painting and reinstalling!!
heres a pic...

u can also check out everything I've done to my car HERE