Thanks guys,
When I first saw it and looked closer, I couldn't believe it. Then I saw the oil mass, and the bit out of the fuel line, and remembered someone here posting a similar finding and I suddenly became very tense. "Wtf is going on here" I remember thinking. I kept slyly looking up at the counter, wondering if this was some kind of trick, and I remember thinking "Mustn't make this guy suspicious, pretend it is a pos and try for the lower price" though I would have paid the $70 if necessary, even though I had nagging doubts as to what was really wrong with it, but hey, a base and parts like this would be worth the cost.
But when it just worked straight away after cleaning it out, and the lovely purr of the engine, I couldn't stop smiling. The receipt find was just the icing on the cake, and I couldn't stop laughing and smiling haha.
Oh, I forgot to mention, the mulching plug was in the catcher too....
I will have to take a few more pics when I get the chance, especially next to the original PT Mustang. First and Last.