I would go with the used one
Or wait until AE Bike has KH’s in stock again. If you stick with it, you will wish you had got a nicer uni, Koxx or KH. Read this thread 
I would go with the used one
Or wait until AE Bike has KH’s in stock again. If you stick with it, you will wish you had got a nicer uni, Koxx or KH. Read this thread