would I be able to re-create my entire database from what is saved at AC (which does not include imported items) together with the separate imported items backup?
The answer to your question, Luis, is yes. Many of us do it that way.
There are many ways to go about addressing this issue, and lots of threads here about them. Ideally your backup is automated. One choice is automated online backup. Restoration may take a little time, as boondoc says, though that depends on your download speed. Ours is much faster.
Another choice is an external hard drive in the office which is used for a nightly backup of imported items (and even an image of your entire drive). We use an ioSafe drive that is flood and fire proof.
For redundancy, you can do both of these.
Personally, I don't like the idea of carrying a drive home, though many do.