mismatched non seqeuntial turbo?

So no one knows, is interested, has tried? Where are my boost experts to tell me I can't do it with two garrets and a bunch of pipe? Cus I'm telling you right now I'm going for it unless someone talks some sense into me and I have no clue what I'm doing!!:toothy10:
Can someone at least tell me how I should overlay compressor maps and what to look for? I know the surge line is most important but where should one drop off in relation to other in the rpm range? My goal is 6000rpm, 13:1 compression, 500hp so according to various online calculators I need 10 PSI and 52 pounds air flow at 650cfm. Oh its a 318.