WTB A4000T PSU or Compatible AT psu!

[PaSha]

All LPX AT PSUs are the same size and have the same wiring.
And the A4000T psu is simply a standard LPX AT PSU.
http://www.pcguide.com/ref/power/sup/formLPX-c.html

Don't know how easy they are to find new these days, being obsolete, but scavenging one from an old pc is always an option.

Good luck hunting