I think it's a great asset for you to "scope out" your test center. Your question is subjective man. Do whatever that'll keep you sharp and energized before the test. Good luck!
I will snowball off of the skipping topic - when I forgot to skip and get too preoccupied with just solving, I do significantly worse (-5 extra avg per LR section.) Its something you have to really train yourself to do, but I think is super beneficial.
I would skip over the LG sections. 7sage's approach is the best and I feel like mixing two different approaches would be more confusing and time consuming.
Side note....Isn't your screen name the name of a famous porn site?
Haha the dream was more funny than terrifying. I don't think there's no way you can skip a WHOLE section on test day. You'd have to be veritably out of your gourd to do so. :)