SDIRA vs Solo 401k for funding Kids College?

[Adam Walter]

My wife is the breadwinner in the family, and I take care of the kids and invest in real estate.  I have taken on the responsibility of funding the kids college and have been researching SDIRA and Solo 401k (lots of information on here which is why I signed up today).   I have no money to roll over to the account, so I will be funding these from scratch.  Initially, I will be purchasing tax foreclosures as the investments which may require payment the day after I purchase them.

My CPA suggested setting up an SDIRA in my kids name (my llc pays them) because college expenses can be withdrawn without penalty, but for what I want to invest in, a Solo 401k in my name appears to be easier and cheaper.  Either way I will need to be able to write a check quickly.

What do you think?

Thanks, Adam