So did I yet again, using the original disk that jarre uploaded.
"Quickstart A500 / OCS / KS 1.3 / 512KB Chip & 512KB Slow RAM" and "Quickstart A500 / ECS Agnus / KS 1.3 / 512KB Chip & 512KB Slow RAM":
Correct me if I'm wrong, but that error is not enough RAM
This was all in one of my posts that BippyM has now removed...