That depends on you finance company. "Not happy with the bike" MEANING WHAT?
"Not ideal for highway use" What highway are you riding on?
If it about speed, I am sure it can do over 100mph, so what is your issue?
(my 175 could do that speed, though I did not buy it for highway driving so stayed off of the highways. Just got to where I was going to ride off road and did that. It was fine in the city, and in the rural back roads& off road.
. There is NO BIKE that does everything...it is either very fast (and heavy and bulky) so you need a tow truck to lift it should it fall on its side; or it is light and nimble and you can throw around with one hand. Nimble just means easy to direct should you have to cross a ravine on a log that has a crook in it....so you turn in time.
. If you do not know how you will be riding MAINLY. Then you are going to have to burn through a few motorcycles. Buy them used and get used to the weight. So start small, in this case the 300, and go up from there...until you find what is right for you.
. When it rains, NO MOTORCYCLE is any good.