Tax-wise...
#1 You guys are FUCKING INSANE
#2 don't listen to WF advice. consult e-business specialized fiscalists with EXTREME, verifiable records of international referrals.
#3 Ultimately, as a US state citizen it will come down to:
#3a live in the US / business offshore -> panic every night hoping you won't wake up with newspapers declaring a bilateral US<=>OffshoreLoc tax inquisition. Or an employee at your offshore agent/bank/business walking out the office with an USB stick, ready to collect bounty ($MMM+) from any government in the world and retire for the next three generations <-- today, this is probably ISSUE #1. no matter how trustworthy your private banker/accountant/entire structure..... all it takes is ONE, so-called ,disgruntled' mother fucker from a room next door and the whole thing goes down.
#3b the most SOLID tax evasion scheme is to acquire citizenship of a nation with low/no tax. no more 'schemes', no more 'structures' or 'setups'... simply, you stop suffering high taxes not because you paid off a dude in the Channel Islands, but simply because more is not required from your resident citizenship! offshore setups in monaco pay 0% but need to stay focused 24/7 as to law adjustments and TIEAs. a monegasque citizen pays 0% but what newspaper scares him? he lives there!
#3c problem with 3b... you're a US state citizen. US IRS collects cash from citizens for a period of 10 years after they renounce US citizenship.
#4 as a US state citizen.... sorry mate but YOU'RE FUCKED. [note; more and more offshore service providers point-blank refuse service to US state citizens today. a law in the US quickly becomes a law anywhere in the western world if the US wants it so. even nations can't stop US IRS influence, how can a fiscal agency? so, they've begun to simply deny US patrons]
#5 Amsterdam as a business/tax-safe location? You've got to be fucking kidding me. US 30% TTB's (Total Tax Burden) are a lot? prepare for 54-71% in NL.