Esxi + Wsus Server + Offline Updates = Confused!!!

Hope someone can help me sort out which technology / product to use to
preform offline updates on about ~10pcs (Win2000, xp, seven) with
Office 2003, 2007.


How updates are preformed currently:

Using WSUS offline (http://download.wsusoffline.net/) and manually updating each pc.
this is time consuming and the reason for not running WSUS is the bandwidth at the
main site is a DSL line which for all other purposes suits fine but not for downloading
large files.

So I would like to streamline the updates instead of preforming manual updates on each
pc.

Main Site:
I currently have esxi server running and hosts a single win2k3 wsus server image.
it has NOT yet been configured to deploy any updates or has it downloaded any.

Remote Site (i.e my laptop)
I have vmware workstation running with the same win2k3 wsus server image, here I can download all the updates within this vmware image. I have a 25Mbps cable so the bandwidth is not an issue. I would then close the image and take it to the main site and restore it
on the esx server where the pc's can download the updates.

So the main question is... Am i making this way to complicated, is there a better way to do
this? Any suggestions please...