Welcome! I am also pretty small. I'm 5'6" and very small frame, to put it in perspective, I bought a small riding jacket and I swim in it! LOL But there are a lot of smaller people who love bikes and so there are a lot of stuff made for us. I have the 250 but the 300 is awesome-looking. For me, personally, I'd spend the extra money on gear because the 50 extra ccs aren't a make or break for me, but that is just me.
Whatever decision you make will be the right one because all these bikes are great and I hope you enjoy it
