It's been a long time since I went through SICP, so someone with more recent knowledge should correct me. But I think you can get through most (almost all?) of

It's been a long time since I went through SICP, so someone with more recent knowledge should correct me. But I think you can get through most (almost all?) of SICP with what's in the Scheme standard, which is a pretty small subset of almost any Scheme implementation. In particular, I don't recall much that uses anything specific to MIT Scheme.