I see that video is five years old! But just to add, it's a really nice original bike, and the fact the seller had the original air cleaner is really good news, because one of those round chrome a/c covers WITH the correct trim decal for model is the absolutely hardest part to find now!
Those bikes in that condition are now fetching 13-14 thousand of yer actual English pounds down here in Australia now. But you can still pick them up for just under $10,000 in the US if you look hard enough.
That bloke has some really nice bikes. Looking at his YT channel, he just sold a beautiful and original '79 XLH with the Siamese pipes. I want one of those!