Hi senordingdong.
I'm glad to hear you've succeeded with your PCB.
On my side, I'm using this modifications for near two months for a daily basis use, and semi professional use, and it's still working fine. It looks like your solution is the best one to convince those who are in trouble with their screen.
@ Laurence Lee: Be careful!! TMDS is not LVDS!! If you need a TMDS screen replacement, take one from an old G4 or G5 (available on ebay). If the screen does not start, you will probably have to swap EEPROM (EDID) from your old screen and the new one. It looks like Mike Bates succeeded in this way. The adapter built by senordingdong and I are only for LVDS screen.