Dave and congratulations on the new MPS
Sorry but can't help with the technical questions, though there are plenty of Gen II MPS 3 owners here, tyres I do mine every 10,000, however with the 3 being front drive you may find your fronts wear quicker and a 5,000km rotation may make your tyres last longer!
Also have a look at some of the Tech forums you may find some answers there, try a search and if you can't find anything post your questions in a new thread in the relevent forum
MPS Modification Discussion
Cheers
Chris