in the mid-70s a friend lent me a 6-LP box set of buddy holly recordings. later there was a six-disc box set on cd, which i bought and made sure he got to hear it all. by this time, paul mccartney owned copyright and so i'd been expecting a new everything box set for some years. looks like it came out in 2009 and i ordered it from amazon in november 2010. this one: https://www.amazon.co.uk/dp/B002SGQGXO/?tag=not606-21 ps: i had bought a double-cd of holly hit some years earlier (i have two such albums, so not sure off the top of my head which one it was) and one of the tracks has someone else singing. my friend reckons it may have been david box.
I have a similar vinyl 6 LP box set - which I thought was the whole inventory of output of his Life's work. Seems not. I recently moved house and our garage is totally full of unpacked boxes of belongings. Somewhere in there is said box-set and your post triggering the link I found today is inspiration for me to compare, in order to find what I am missing. Seems like it may be a big project for downloading afterall !