Just for the record, I recently rooted with towelroot and, following Game Theory's instructions, got Link2SD (free version right now) working fine and have about 700MB of internal space free.
I moved pretty much everything to the SD card -- Maps, Play Store, Google Search -- and everything thus far has worked. I also have a Class 10 SD card so while there's a small lag, it's negligible.
I'm not particularly savvy when it comes to all this Android stuff either, but if you take the time to watch the videos and follow the steps, I'm sure it'll work out.
Just an FYI, before removing apps, I recommend freezing them in Link2SD first. I was planning to take out LGEIMEbin.apk. Then, to my surprise, when I tried to enter any text, guess what wouldn't work?
Also be sure to install the Clockworkmod recovery from Game Theory's site -- and use it! I flashed Freedom Kernel and while it doesn't appear TRIM is working, everything else seems to be fine.
Thanks again Game Theory for all your time, expertise and effort!