[44net] OT: Any OpenVPN Guru here?

Hi, me again with an OT kind of topic. I have been pretty happy with the way the vps at vultr and the bgp announce been doing, this did not missed a beat since it been fix, again thanks to every one that helped. Now I need a push in the right direction for OpenVpn. Went on the openvpn forum, asked a noob question, got shamed post by a prick, waited for someone else to try to help me. Now I am asking the ham community for help. I have seen many tutorial/video/explanation and how to's for OpenVpn. Most are tutorial where, you start a script, enter some magic numbers its start installing package after package and it start working. Youhou! NOT! That ain't the kind of stuff I am looking for. If I want to support the server and be able to debug it in case it fail I need to know where and how all this works. Let me tell you my goal. I will have multiple site that will connect to the vpn server. on those site Multiple machine will need a 44net address. some will have fix address but I want to also have some assigned by dhcp. Now I could also have some simple client that will connect and those will have dhcp address. How do I manage that into OpenVpn. Does the dhcp vs fix address is managed by the OpenVpn config? Or does I need to have a local dhcp server at the site (the router that will connect as the client) will I have to do some bridging between my site (client to client communication)? And finally is there a real good how to that is not 300 page long, as hard to read as the U.N. whole bylaws and treaty and that a layman can understand somewhere& hopefully that is not a recipe that say, add some pixi dust here, open notepad 3 time while typing "I will not read my sister's diary in front of the whole class" Copyright the Simpson's . 200 time, without saving the file between each opening and closing, and hoping that it will do the job. Yeah I know its 42. Pierre VE2PF