Ideally, you should trust your service provider to provide you with the container and you should install everything else by yourself. Doesn't exactly help if you're unable to perform simple sysadmin while running a server. (ie. adding apt repo, update, upgrade, etc.) If it's outdated, then you would probably have to finish it up with your own updates.

It's quite difficult to find ASNs less populated than that. IPs under the same ASNs doesn't mean that they are under the same datacenters; they can also be among a bunch of different datacenters that are geographically located in different locations.