Hello. I am connecting a line doubler to my LCD projector. Here is the thing. The line doubler has a VGA DB15 plug and my projector has Y Pb Pr component. I know the cable is available but I can't spend $500 on it. Can anyone tell me where to get a reasonably priced one or even better, which pins on the DB 15 correspond to the three signals in the component video cable? I already have a 10m component video cable through my ceiling and could just fasion an adaptor. Last, could I use a DB15 to 5BNC cable, and just not plug into the two sync cables. Would the other three cables be in the correct configuration for the plug. Thanks for your help.