Personally id get a backbox you like the look of, and then get the rest of the system custom made up, stainless creations just did my 85 using their own box (because a jap one wouldnt fit) But there are loads and loads of systems for starlets, a couple are still available new but most you'll have to find used. Cant remember all them but to name a few. 5zigen do a couple, HKS super dragger & silent ones, RSR, power getter, apexi, blitz etc.