Now when renting ive always been on a 160/161.. Im 6ft 1in, 71kg and boot size 8..
Oh god, the places you've been renting from have been sizing you based on your height instead of your weight. A 160+ is actually too big for you at a beginner level.
Based on your weight and ability, something in a 155-159 would be ideal. So that 159 should work, but if they offer the model in a 156-157 it might be just a touch easier to learn on...