Prydain pronounciation

I’ve been re-reading the Chronicles of Prydain for about the 1000th time, and I’m still wondering how to pronounce the Welsh names.

Prydain - pri-DAIN or PRY-dain?

Eilonwy - EEL-on-wee, ell-ON-wee, ELL-on-wy?

Taran - TAR-an or tar-AN or tar-AHN?

And what about Arawn ?