No, I don't, but it's conceptually pretty easy (the devil is always in the details). I'm sure you could find something on the net describing this better.

What I've done is, first, to block the HTTPS port from going anywhere except to my proxy. If you want to use HTTPS in my network, you have to install my cert. That cert is used to negotiate the HTTPS connection to the proxy. The proxy then has access to the plain-text data stream. If that data stream is a DNS request, then it's diverted to a DNS-over-HTTPS server that I run (which uses my local DNS server to resolve the request). Otherwise, the proxy just transfers the data to and from the destination site using an HTTPS connection from the proxy to the destination.