Brian, great insight.
IRA Financial argues that a Solo 401K has all the benefits of a SDIRA, assuming a person has self-employment income in order to establish it. See: http://www.irafinancialgroup.com/solo401k.php
According to their site: "A Solo 401k plan is perfect for any sole proprietor, consultant, or independent contractor. A Solo 401k plan offers the same abilities as a Self-Directed IRA LLC, but without having to hire a custodian or create an LLC. With the IRS approved Solo 401(k) Plan, roll over your existing IRA or 401(k) plan funds tax-free into a new Solo 401(k) Plan and use those funds to make tax-deferred investments, such as real estate, while also gaining the ability to borrow up to $50,000 as well as make annual plan contributions up to $59,000 – almost 10 times the amount of an IRA."
Based on this, it sounds as though this is an attraction option for my wife and I that have a part-time small business as well. We can just roll our existing funds into that and have the same checkbook control that we desire from a SDIRA...
Thoughts? Thanks! P.