I have found Ohlins forks for the RS125,,,,,,,

I have seen what appear to be two different types of sliders that mount the brakes differently, correct? What are the year ranges for each type?
My bike has 12" diameter wheels, I believe the RS125 wheels are taller?
What is the length of these fork tubes?
What adjustments if any do they have? Preload? Compression? Rebound?
I don't mind buying new if they are not "holy crap get me a sedative" price. Can they be bought new from Honda parts dealers?
I hope the RS125 riders can get me caught up on these forks.
