The extra equipment shouldn't be a problem, only extra gold, rope, etc. would interfere with the easter egg. If you didn't keep an old save to try this again, check out;
Teleporting Anywhere, via hex editor

Use Crtl-F11 to save a screen shot to the '..\Divine Divinity\Run\capture' folder, then use a graphics program (like the freeware IrfanView or XnView) to crop or re-size (if necessary) and convert to jpg.