All the chui releases of NEO4ALL, only the Dreamcast plain files, pre-extracted and time ordered
RC4, RC3, RC1, beta4, beta3, beta2, beta1, alpha2 and alpha1
these still are on his official download page : http://chui.dcemu.co.uk/neo4all.html
but a couple of them are packed with an old .rar version, and can be difficult to extract