I'd recommend Loctite 406, and some proper primer. Of course, superglue and no primer will do the job, but might not stay held together so well....
Epoxy is only good if the fit isnt very good - ie. it will fill gaps when you f**k up (Y) The only decent epoxy I've used on pads is some UHU Heavy Duty Plus+ stuff I got from Morrisons, haha. You can double the cure strength by heating it to about 100'C (instructions on the packaging)
This is how I used to hand cut pads:
Done by hand with a 6mm drill bit. Using an actual drill usually makes it snatch and tear a big hole in the backing.
Angle grinder for the sides, stanley for the middle bit.
Good luck, its tough! See if you can get something else to practice with first, I guarantee your first few goes will be shoddy compared to what you can do after a few attempts...