I cant help you with the load cover, but they do come up on E-bay and in the classifieds on here every so often.
As for the carpet sections that you require, I think that i still have mine, surplus to requirements, in my shed.
They are brown. They proberly have some mud on them, but should clean up ok, as it was the footwell carpets that got the worst of it.
As for cost? Well, if you collect, you can have them in exchange for 20 Regal kingsize. That is of course, if I haven't already binned them.
HTH.