one more place to check on is
Modern Cylinder Heads.....Jeff usually has a winter special for cnc porting of any aluminum heads, I had a set of eddy rpm heads ported last year.
I am away from home working so i dont have the flow chart to post....but his price is the best i seen....you could give him a call and see if he does the special again this winter.. I remember i shipped my heads in dec last year..
http://www.moderncylinderhead.com/