BATMAN™
You can't.... Under the Federal Gun Control Act, individuals may only possess those fully-automatic firearms that were lawfully possessed before May 19, 1986.

WRG
First you are going to have to move to another state because under Michigan law... "It is unlawful to sell, offer for sale, possess or manufacture any machine gun “which shoots or is designed to shoot automatically more than one shot without manual reloading by a single function of the trigger.” Exceptions are for manufacturers with government contracts and any person duly licensed to manufacture, sell, or possess any machine gun by federal law."

Josh
contact a class 3 dealer and he will walk you threw the process