...that have most likely been asked a hundred times before..
..But I'm still new here, and will use that to my advantage while I can

I know you can replace a Trs II with an original
floyd rose bridge..Do you have to replace both the screw posts and the anchors? Or just screw in some new posts?..
If I wanted to go with an edge, how do I buy one of these? Order straight from Ibanez?..If so, what's the best way?..Is it hard to?
My guitar is an RBM 10, and I don't think I would have to do much modification for an edge as long as the post spacing is the same..
If not...What version of the
Floyd Rose brand is a good investment? Will all versions fit?
Better to ask the pro's here I think..