When setting up our Solo401k, I read I needed to keep all monies separate, My rollovers, My wife's Rollovers, My contributions, etc.

So I currently have two accounts, My rollovers ($92,xxx) and my wife's rollovers ($2,7xxx).

My question is, do I now need a third account for doing the actual purchases?

I won an auction.com house, so I am going to be using the Solo401k to purchase it.