It seems to me that V8 engine mounts are varied and also very expensive, I don't fancy paying £90 for the ones below when they look like something I could make myself

But then I've seen different types like the ones below that look similar to my P6 engine mounts (can I use them?)

So the question is where is the best place to get the mounts (new or 2nd hand) and the best place to get rubbers (new obviously) OR does anyone have the dimensions needed that I can make a set myself? Many thanks