I had mine done in December at an independent shop in So cal. You def should change the sensor while your doing it also yes you can resurface the flywheel. The whole thing with labor cost me 2600.00 not bad considering dealer would have cost me over 3500.00. But I agree do not do it half way wait till you absolutely have to do it then do everything at once.
Would you happen to have the name of the independant shop in So Cal, Mine as 20k miles and will need to be done soon.