
yes, that the most simple, most straight forward and most reliable setup...
There's a ton of office boxes in excellent shape that never really experienced any serious workload during their 'official' duty - for a few bucks on eBay.
Trash the harddisk, add a kvm-switch and consider the RME device as an improvement to your clock quality.

I never understood the notebook-with-a-Magma point of view.
There are industrial 'luggable' PCs with TFT screens with an even smaller footprint featuring a fully usable PCI bus.
They cost a bit more than their office counterparts, but way less than the crippled external box

cheers, Tom