High schooler looking for used copies of SICP

I'm a 10th grader (aged 13) interested in computer science. I got into it using [Scratch](https://scratch.mit.edu/), a programming website for kids. There I met Brian Harvey, the brilliant (former) CS lecturer at UC Berkeley. I asked on the thread where all the CS geeks (and Brian) hang out if there was any way to get my hands on a copy of SICP cheaply, since naturally my parents refuse to get me one because they think that CS == IT. They (the Scratch people) suggested I ask on Hacker News if anyone's got an old copy they're willing to part with. So that's what I'm doing! So if you've got an old copy of SICP around your house collecting dust, I'd be very grateful if you could email me at jay@backtick.town and we could talk!