I have a used set of 30mm offset magnesium yokes ( these give a 6mm bigger trail) they are crack tested then professionally coated in black xylan They fit ohlins forks 53 56 yokes and come with the corse steering stop. they will fit 748 916 996 998 1098 1198 I have been using them on my 748R track bike for a few years and are in very good straight working order. £500 i can do pictures if required but cant be arsed to explain what trail is...
i also have a pair of ohlins 46mm forks that fit the magnesium yokes, with front spindle to fit. these are 53 56 ohlins originally from a 999R with the fork bottoms changed to radial feet from bursi evolution. the forks have the RT 25 valve kit in them..