So, I am actually thinking about getting a Floyd Rose discovery. It's one with a speedloader, but it's a fixed bridge. Now, if I took it to a luthier or something like that, could they install a tremolo bridge, and how much would it cost?
cant help you but i might be good to specify where are you from
that depends on what you pay for the fixed bridge model. It might be cheaper to buy one of these http://www.soundaboutmusic.com/brand_view.html?brands_id=245 . At any rate it would be a lot cheaper to find a DSOT model or speedloader model with the tremolo already in place than to buy a fixed bridge then buy a floyd tremolo and have it installed by someone else.