Well I guess this is seasonal, cos the katana FE fights always break out about this time.
Anyway 89-95 kat stems machined for fitting GS and the method I use will let it fit without spacers anywhere and leave your steering lock functional. All the original bearings are useable. They're not going to get damaged.
I can be persuaded to do 96+ as well cos I have done it also. But factor in a bit extra turn around times due to not being exchangeable (I'd swap my machined stem for yours if you were wanting it fast if it was a 89-95). Also some modding of the upper triple was needed, so that has to come along to me also.
I am selling the machining job, not the stem itself. So you'd have to send me a good stem and I'll get it machined and sent back.
Cool.
Buddha.