900usd for the pems from sc is a bit steep.
I know of another site that sells the exact same one for 500usd.
So when you are of interest, I will sell you one for 550
$900 might almost be reasonable if there were 3 scanners and the needed accessories installed. But, with scanners costing extra then, to me, it does not sound like a very good deal.
Now what I wanna know, IF you're THAT paranoid, do you keep your wallet and keys and a metal lock box? BTW you have just made it so easy for someone to run up, belt you, and grab everything, and run away.with it all. Congradulations