I have a price sheet, but really only use it for the very simple jobs. Most late model valve jobs I price from experience, knowing how long it has taken us in the past. Most OHC ,4 valve per cylinder, heads are a minumum of $200. I have been trying to shoot for around $90 per hour. Most of our time is spent cleaning. Get a small stop watch and actually time yourself to see how long you really spend on each job.
On another line .... I would be curious to see how your Newen setup works out for you. I have the same thing but have found they really do not work that well for doing your average valve job. I can do them faster and in my opinion better with my Neway cutters that I have been using for years. I can usually cut all of the seats on a typical Honda head in about the same time it takes to set up the cutter on the Newen. Also, I have not been real happy with the valve seat runout with the Newen setup. Might be my seat and guide machine (Peterson TCM25), but others have told me they have the same problem. The Newen setup is great for opening heads for larger valves etc, but for your normal "touch up" valve job, I think it is too slow.
Advanced Automotive Machine