Sorry I couldn't have jumped in earlier, major mods to my house are having to be organised.
I can't remember exactly how I did things, but the pictures I sent to you with the text you should have shows exactly how I did things.
Before you go any further, you should contact Chuck Fellows, as he did the same sort of mod, and worked out how to do the adjusting screws much better than I did. Just ask him where his post about it is.
Another thing I did do, was to put two pins in each slide on the saddle and a groove on the gibs, basically to stop them slipping sidewards. I don't know if Chuck did the same, but to my mind, it could stop problems appearing later.
I hope this helps.
John