It's a big jump, but you've got the right attitude. Take it slow, get the feel (it WILL be different!), and go for it. The skills you've gained will transfer nicely to the bigger bike, given the chance, and you'll love it!
As for gear -- I am of the opinion you can't really go overboard. Full-face helmet, gloves, armored jacket, pants, boots -- all good. Anything to save your skull, bones and skin is a GOOD thing! I see plenty of guys who'll go with just a do-rag and shorts with a T-shirt -- their choice and no criticism intended, but that ain't me.
As for gear -- I am of the opinion you can't really go overboard. Full-face helmet, gloves, armored jacket, pants, boots -- all good. Anything to save your skull, bones and skin is a GOOD thing! I see plenty of guys who'll go with just a do-rag and shorts with a T-shirt -- their choice and no criticism intended, but that ain't me.