Currently im playing with the idea of running a twin turbo setup. but instead of mounting them in the upper part of the bay, Im thinking of mounting them below, making it a shorter trip for the exhaust side. The setup im thinking of starting out with is a pair of GT3s. they are cheap and they put out low pressure. As for the MAF, using ECUtune's stage 2 setup. larger MAF, larger Injectors. that sovles 2 problems right there. And with undermounting the turbos, it will be eaiser to do swaps later down the line.
An idea that my dad had, for monitering knock, was to find the frequency that the stock sensors are built to, and finding another sensor that will stand alone, but it will be going off before the stock knocks pick anything up, preventing a retard.
We have also been talking about doing water/alchol injection to controll the engine better. never thought of using washer fluid though.