Definately get rid of the D2's and stick on a set of Meister's. The rest of your list is fine, although you may not need the front arb as it does make the front end a little twitchy I find - I have everything on your list suspension wise and mine does handle very nicely, I also drive some good but not smooth b roads most of the time. Also there is no way you can set up the coilovers yourself unless you have the alignment equipment, go for a little bit of negative camber (I run 1.2 but gonna bring it down to 1deg as it likes to tramline and follow the camber of the roads a lot) maximum castor possible (adjust the antilift kit out fully) and neutral toe. It makes for a fun car with that setup. LSD is what I really need now too as I spin up an inside wheel occasionally. EDIT: Add a lower arm brace to the list too, they're awesome for taking out rabbits on the b roads. Plus they tighten up the front end nicely too. ;)