Yes, with Asset Management Solution you can create your own asst statuses and assign them to a resource.
You best method would be to use StandAlone inventory, as you can configure it to send its data to either a local or network location instead of directly to the SMP. This data can then be manually copied, or automatically if its a network share, to the SMP.
If the systems will not even be switched on, then Barcode Solution will be the easiest way of tracking essential data.