Help with referencing

I'm currently researching the legal frameworks surrounding the British Grand Prix for my masters. I've gone down a rabbit hole about the lack of patents in F1 racing and found lots of people quoting an interview that James Allen did on his blog about it. I've found the link to the blog post but it's not available any more, when I looked on Wayback machine, it also isn't there. I know it's not best practice to quote of a quote of a quote but I'm not sure what else I can do?
Would it be okay just for this?