Wouldn't it be easier to customise some spacers? Just get some longer plastic cylinders, and shave some off the end until you get the length right (you can angle the end so that the support is more secure using sandpaper). Use long 3mm bolts and nuts through the CSPPC > cylinders > motherboard, and some rubber washers to insulate at each end.
Total cost ~£5 maximum
Seems a bit of a no-brainer compared to buying a new motherboard.
Regards
Rich
