only thing i'd suggest is something like better leveled lists, because i hate that aspect of Oblivion with a burning passion. No glass and deadric armor for bandits.
Moo is a more complete gameplay overhaul, thats pretty popular.
textures is up to you, there are good upscales of the vanilla textures and there are well made replacements, so pick a comprehensive pack with a style you like.
for receipts and such paperless ngx is good. that won't track your repairs or inform of you of likely maintenance problems, but that and a spread sheet sounds like a good start.
look into local dns servers if you want multiple machines to use your local domains if you only want a single windows or linux (and probably mac) computer to use the domain to access a specific local ip an entry in your etc/hosts file would be enough
https://github.com/docker-mailserver/docker-mailserver should be able to do it.
if i remember this in 6 weeks i'll check the setup at work.
found a copy in some kind of archive