Splitting a property with your Solo 401k

[Account Closed]

So I know there are pretty strict rules in place to keep your personal dealings and 401k dealings separated.  I ran into a deal that seemed to make sense for me and for my Solo 401k.  There's a 3 story building for sale.  The first floor consists of 2 restaurants and the second and third floor is basically a 5 plex of apartments.  If I had the seller split these into 2 properties (the Restaurants and the Apartments) I could buy one set with my cash & financing and the other set with the Solo 401k.  

So owner splits his property into 2 properties, sells one to my Solo 401k and one to me.  There's no interrelationship with the two except that one property sat on top of another.  

If a seller owned 6 SF properties and sold 2 to my 401k and 4 to me, that would be perfectly fine.  Isn't this somewhat the same?