if you are replacing the fork oil,
then i would be pretty sure once they are cleaned out, the fork seals will be fine.
mine were weeping a little, but after servicing the forks, they are all good, no leaks.
im not sure about the seals i refilled them with fresh oil and then went for a ride and it leaked within 10 mins of riding with alot of oil coming out ...
You would have to clean inside the seals, but if you are going that far then I would recommend just putting new ones in. Also polishing the tubes would be a good idea too.
so i serviced the front forks and replaced the fork seals with no further leaks. also added some spacers to the forks aswell but instead of cutting some pvc tubing i had some round bar laying around with the same diamater as the original spacer so i just cut them to length adding an extra 1 inch to the spacer length. Also refilled the fork oil with an extra inch of oil measured from the top the front is now alot stiffer and no longer bottoms out... I have also ordered a fmf pipe and silencer for it so just waiting on that to arrive. This bike is so much fun to ride and have got the mrs on it now so she can learn to ride a bike with clutch gears etc...