Viewing Nikon D800 Live View remotely

[Cage]

Last night I had my first astro session with my motorised mount. To say I was underwhelmed with the outcome would be a gross understatement as I couldn't even line up the first star in a two star alignment.

The problem is actually viewing what the camera is pointing at, either through the viewfinder or with Live View, as when the mount is pointing more or less straight up, or at other weird angles, I can't get a clear look at either.

What I need to do is to be able to view the Live View screen on a tablet, laptop or whatever. I don't want to remotely control the camera, just view what the Live View screen is showing so that I can then manually adjust the camera focus and other settings as required. Doesn't have to be WiFi, a cabled connection is fine.

Being on Mal's payroll (AKA the OAP) I'm not exactly flash with cash, so you beaut laptops and tethering software is not an option.

Any help most appreciated.

PS: I've searched here and came across this for $24.99... http://www.oxfordeye.co.uk/TetherPro...proDetail.aspx and if I could get a cheap used laptop/notebook that would probably do the job at a reasonable price.