Hey mate what are your plans to make the pci backing plate? Concentrate on getting your motherboard tray and pc backing plate made. I cant stress enough to start building at those two pints., I can put together heap of pictures if you like.
Glue your standoffs in your motherboard in, It's not going to take much to strip your threads an unsupported mobo is really uncool. I know it seems as it's smooth sailing atm but I can see a few issues arising. I would suggest you tear down another case and use its motherboard tray and pci backing plate. Build your ply around it as you please. Also keep in mind everything in a pc case is earthed out. This meaning generally the earth from your power cord is fixed inside your powersuppy to its metal casing.
Do yourself a favor and research grounding, It's food for thoughtEdited by sil3nt_dr3ams - 2/11/12 at 3:27pm