what year 560? those had v2's or v8's. nice axe, too. as far as the broken trem arm, that's an easy fix for an edge trem. on the back of the sleeve that holds the trem bar in is a phillips head screw that holds a wire that looks like a paper clip. the clip actually holds the bar in. if you just unscrew the screw, the broken part will sither fall out be easier to manipulate it out. as far as setups go, there is info on jemsite and rich harris' site ibanezrules.com about setups. it really easy to do if you got a decent amount of guitar type tools at your disposal-mainly allen wrenches and screwdrivers. to block an ibanez trem is almost sacreligeous. those things where made to be abused. i do all of my own setups and guitar work, so it pays to know. shoot, if your not paying much for the guitar to begin with, why not learn how to work on them yourself. its actually very easy to do and you will gain tons of experience, but if this tech wants to do it for free, you can't beat that-unless it comes back worse.
as for your pickup combination, that is a cool idea of the hot rail in the neck, question is: are you going to hook it up like a rg550/570? since the hot rail is a humbucker, it can do the coil tap to get cool clean tones. i use the hot rail in one of my strats and love to coil tap it to make it more of a versatile guitar. are you going to leave the other single alone? all in all, this is a decent deal on setup, but i hope you will be satisfied with it. make sure the neck feels right after you get it back. things to look out on is the truss rod for string relief, the height of the trem and trem angle, and intonation. these, to me, are the ESSENTIAL part of a proper setup. the shine up and fret care can come a far second to these aspects.