This seems like an exercise in futility.
More like "reductio ad absurdum".

It's a challenge, Bert!
If someone said to you, "Bert, I have had it with paper charts. I want to set up my clinic from scratch with EMR, and I only have $5,000 to spare. Can you help me?" What would you do?
I suppose you could do it for under $5,000, but depending on the rooms, I would think at least $10,000 would be more likely.
So do I. I disagree with the Contrarian who suggested the figure of $19,000. So, how would you do it?
With peer-to-peer, you can save around $4500.
I may move to a dedicated server "someday", but presently I run eight computers with AC P2P, six wired and two wireless and I don't have any speed issues.
My cost issues were mitigated by the fact that we had most of these computers already, which is why I haven't really jumped in with my figures, as I don't think it makes for a fair comparison.
However, many practices are exactly like mine and already have a number of computers which they were using for other purposes. It is a virtue of AC that it does not need the latest and greatest computers in order to run acceptably, especially with a small clinic. So, this may affect many people's start-up cost.