you sure that its a fuel injector problem? many owners on this board have had issues with their fuel filters and fuel pressure regulator clogging and causing hard starts and poor gas mileage
the exhaust leak.. any more info on it? i saw a vx the other day w/ an exhaust leak... turned out to be a gasket of some kind in the exhaust system (didnt see the problem.. just what he told me) but it was only an $18 per side part
hope you decide to keep the vx.. i wouldnt trade mine for the world!! (or anything less than 20k)