Participating in the EB5 program results in obtaining permanent residency. Obtaining permanent residency and the not living as a US permanent resident can cause many problems. Retaining a qualified US Immigration attorney can help a prospective immigrant develop a strategy (that may or may not include the EB5 program!) to reach their US immigration goals.
Steer clear of EB-5. You are obviously confused about which type of non-immigrant visa might be best for your situation. Consult an experienced business immigration law firm about what is right for you.
Based upon your questions you definitely need to consult with an experienced EB-5 Attorney. Your proposed legal and financial infrastructures are not EB-5 compliant and may violate SEC regulations. It is imperative you spend a modest amount on Attorney fees to put you in the best position to move forward.