I've setup Praxis before. It's not cheap. You're usually looking in the neighborhood of at least 20K (usually 30K) for basic hardware and setup. It's been a while since I've set them up. The other downside is that it takes months of training for the AI to work properly.
This was circa 2013.
$10K per provider licensing + $4.5K for each additional provider.
Server - Dual Xeon 8-Core Processors, 32GB RAM, SSD Storage
VMWare vSphere
Oracle DataBase $5k+
They also recommend some decent desktops or another server with the same specs as above with RDS. I wasn't crazy about them because I thought they overspec'd the hardware quite a bit. They also insist that you use VMWare.
That's not including the cost convert AC which is MS SQL based to Oracle. 5 Users in the cloud used to be about $500/month.
It was a much easier pill to swallow when you get $18K for your first 90 days of MU.
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