I'd love to use it, but its 68020+ only, which I have with no way to display. The only computer I can monitor-ize is the A2000 with a 68010.
SAS/C 6.50 is available from the TOSEC Amiga collection on archive.org and the updates to 6.58 are on aminet.
It should run nicely on your A2000.
Failing that you can also get Aztec C from TOSEC too.