In the meantime, here are some shots of the cable I made while writing the guide. It's based on the schematic found here and is built to withstand lots of plugging/unplugging (heatshrink used as strain relief throughout).
|Complete cable (with split video and audio strands)|
|Top view of SCART plug|
|Bottom view of SCART plug|
Lastly, for anyone thinking of building their own VGA to SCART cable, unless you really enjoy a bit of DIY, I'd highly recommend checking out the new UMSA - Ultimate SCART Adapter over at Arcade Forge. It looks amazing! It'd save you heaps of hassle and guarantee a great outcome...
... but if you have more time than money or simply love the thrill of making something with your own hands, stay tuned for my guide.