Full strip down, clean, inspect, polish legs, replace seals, dust seals (£20 extra) re-oil and courier back (£15), So, just seals and oil plus labour cost is £100.
I would normally do a fork service myself, right way up easy, USD a bit more dificult. Did a set of R1`s a while back and had to make special tools up to strip them. Looked at the FSM to do the SP`s and the amount of parts and time involved plus tools required, I thought that was a good price. The bike has been sat with a popped seal for a few months as I haven`t had time to even take it apart so bit the bullet and sent them away. Even got a set of new seals sat on my desk ready.
Happy now as they are refitted and I get to play again.