If anyone wants the Radio Plays I can share a Google drive link

EDIT Here you go

Includes original radio series and the noughties radio series (adaptations of books - not as good but has the original cast and is entertaining)

The 70s records - essentially the commercial version of the first radio series - has the Disaster Area sequence in the for 'Black Ship' instead of the shapehifting aliens.

The Dirk Gently radio series with Harry Enfield. Inferior to the books but the most faithful adaptation.