Regarding sever hosting: Hetzner has a very attractive server auction on their website [0]. For about 30€ you can get several terrabytes with a fast cpu and plenty of RAM. No set-up fee either. These are unmanaged dedicated root servers.
Basically cancelled sever subscriptions are first offered here again before they take apart the server. So the offerings vary and are time-limited. However, if you pull the trigger there is no limit for how long you can keep using it.
Servers are in Germany or Finnland.
I am currently waiting for slightly better offerings (a few weeks ago when I found out there were slightly more attractive options) and then will pull the trigger.
I yet have to find anything that comes close to this bang-for-buck ratio.