How timely! I just got my jug and head back 3 weeks ago from my local machine shop. They bored the jug for 65mm pistons and did a valve job (plus installed my titanium retainers, HP springs, and billet keepers).
The cost was $48.50 per hole for the bore, and $88 for the valve job. With cleaning the parts and shop supplies, the total was $317.79 out the door.
John