I have it running now on MorphOS 3.2 with tex-live 7 from 2002. Looks good, can even compile my current paper with pdflatex. Indeed it was not easy since the docs are partially wrong, the scripts are too old (e.g. sed does not work as expected, missing directories etc.). But I think if I would make an archive of it it should work on most Amigas nearly out of the box. So if someone is interested...