PSUSMU,
Since you're so (over) confident about swapping turbos, why don't you do Cityazndan's turbos swap on jack stands in his driveway and we'll all come watch???
BTW, I've done 90% of the mod installs on my 335.....but I know when to turn things over to a professional (see other 10%).
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2011 Mineral White M3 ZCP - Opticoat, Ventureshield, some CF, B&B exhaust, AFE Intake Vorsteiner VFF 101s Ohlins
2014 Mineral White 328d Xdrive Wagon - Opticoat, Ventureshield, B8s, H&R, Apex SM-10s Hawk Pads
2021 718 Cayman GT4 - Fire extinguiser