A regular run of the mill 16 valve job around here runs $165ish. Thats a valve job and machining the head flat, new seals, dissasemble, reassemble..
I did alot of my own head work to save $$.. mild port and polish, polished valves, polished combustion chambers, deshrouded valves, etc.. etc.. and provided the seals and disassembly, thats why my 5 angle and shaving was so cheap.