from my experiance those starion motors are pretty weak ay... i've blown a few of them, better to go for a standard vr4 motor compared to a worked up starion motor
wayyy better design, better balancing.. etc....
and the main cost in doing the vr-4 motor would b the computer and if your gonna do that anyway why not just do it once and only have to worry about smashing diff's but hey thats what the welder is for