WTB: Turbo 400-600hp capable!

[4g63tcrazy]

I am looking for a turbo that is 400 to 600whp capable. I prefer it to be oil cooled, mitsu housed, and has the anti-surge cover on it. My SBR G60 is on its way out and I'd like to find a direct replacement.

Turbo's I have been looking at are:

HX-35 (mitsu housing or t3 would be fine)

HX-40 (mitsu housing)

BW s256-258 (extended tip/mitsu housing)

And my last option..
SC6152 (mitsu housing)

I'm looking more for used since money is tight but let me know what you got!