So went in to speak with my tutor today and she said that 143 options was way to much!! I showed her the spread sheets I had done and she said that the space of the store is too big and that Topman would never give that much space to a new brand...... Back to the drawing board!
It did kind of work out, I changed the space to 12cm2 (which is smaller) and the options went down :D I now have to create just 79 options!!
I am still sticking with the three trends I have chosen :)