RE: Welcome to Club SAITO !
Ok guys with regards to the broken stud, check out the Snap on catalogue for stud / screw removal tools all good stuff or go to your local tool store and buy the most suitable sized EZ out extractor and the correct drill (there is usually a chart to guide you. If not access the Pratt and Whitney engineers mechanics book or the N.I.T engineers guides they have all the good guts on this. You have to be careful drilling the hole though talk to your local machinist (I use a pdestal drill for this job)
Re the locktite they make good "debonder" buy and use as per directions.
I also have the appropriate tap for the screw and run it down the hole after I extract the broken bit.
There you have it all for free I usually charge a case of Bundy and Cola for that data