Samsung bloat is the easy part. Either freeze or delete it with TB. I don't care for any of it. I also turn off the ripple effect, Motion effects along with turning off picasa. It is just fluff and pretty useless.
Inverted GAPPS; you are on your own to figure out. Everything you need is in this forum. However, I would recommend making a nan droid before you attempt to replace and invert GAPPS. I will not give instructions on how to do this because if you FCK it up, I refuse to be liable. Sorry. Just do a search in here for inverted GAPPS.