a small fixed head would work for you ,but those lite arrows stop really fast when it hits anything!
at an 1 1/2" cut it will stop very quickly.
if you want to be a happy camper stay with the 350 and up range.
ke is a funny thing to deal with.....numbers are misleading.
example two set-ups with the same ke values lite fast and heavy and slow......the heavy and slow will get more meat with his set-up!
so with that said a 375 gr @270-280 fps is in the middle range.
speed is alright ,don't get me wrong ,it's that it too, comes at a price.....noise,penatration,bow fatigue,tunable bow,on and on.