JAC which I don’t have a lot of experience of.
Not an issue. You can get help for that here.
JAC Seems a whole different set up to Shared hosting!
Yes, it is. Essentially, that you have is a Virtual Private Server (hence the VPS acronym). It's as near to a dedicated server as you'll get (for that price range), and it also means you have FULL control over the entire server. However, this can be a double-edged sword in the sense that you are responsible for all of it, and you're on your own (well, not entirely, you have metabullet). It's a sure-fire way to bolster your Linux skills :) but also a way to either lose hair, or watch it turn grey overnight !