Seriously it's not worth the hassle. VG30's are crap, VG30DETT's are nightmares to work one as they are so large and bulky. They have oil pressure problems, blow head gaskets (on standard boost), overheat and you need a mortgage to rebuild one. Plus they are heavy and to fit one into a 510 the thing would struggle to handle. Just cause it's the biggest doesn't mean it's the best.
Having said that Pete and Pete from EMS put a VG30DETT into a 610 Coupe a couple of years ago, so it can be done. There are a couple floating around on the internet such as michael spreadbury's VG 510, but he has basically re engineered the whole car around the motor. Too much hassle.