Put the cartridge in your forks
If the internals of the S forks have not been changed better allow for a kit for those .Well as far as cost goes I'm better off with the Ohlins. The guy I know is selling Ducshop 30 mm triples AND the 1098S stock Ohlins forks for $1100. I'm thinking that's a pretty good deal. If I was to go with Ohlins cartridges for my Showas, it'd be about $1200 just for that. Those are hard to find used because not many people sell them.