Creative Speculation

I don't know much about this case. As you say, the SCCRC's grant of appeal doesn't seem to offer any support for the premise that Libya was framed -- and, indeed, it explicitly rejects some common arguments to that effect.

One correction: you wrote, "The board found that the evidence pointed toward the materials being purchased on December 6...." Actually, they say "prior to 6 December 1988." Apparently that is when the Christmas lights were turned on; the prosecution witness must have said that the sale occurred before the lights were turned on.

And a nitpick: I don't think the SCCRC addresses Libyan culpability directly except to note the 2003 letter in which Libya "accepted 'responsibility for the actions of its officials' in the 'Lockerbie incident.'" The SCCRC reasonably notes that this letter doesn't confirm that Megrahi is guilty. I think you're probably right that there is "no question... in the mind of the SCCRC" that Libya is culpable, but it may be safer to say that the SCCRC doesn't raise any doubts about it.