How are you doing Perattzi, I guess you are talking about Epiphone's 1963 Firebird VII, I took a look at it on a couple of websites, read some buyer reveiws, looks to be a pretty decent guitar, and quality looks good for the price, you may want to check Harmony Central for some reveiws, as far as a 5 way switch goes, I'm not aware of any Gibson style 5 way switches, Gibson seems to want to stay ignorant of all the possibilities that a 3 pu guitar could have, but I think it is possible to get most, if not all of the pu combinations you want just by switching some of the wiring and using the volume controls, each pu has it's own volume on that guitar doesn't it? As far as the banjo tuners go, I think you kinda said what I think, possible, yes, worth the trouble and expense, probably not, even on the old Gibsons I don't think that was something that players fell in love with, my suggestion to you is, if you do get this guitar, that you play it and get used to it for at least 6 months, before you go making any major changes, you might just learn to love it the way it is..............................Good Luck!