Hatch covers - old style P&H Capella RM

I have a rotomolded P&H Capella that I bought in 2001. It is equipped with odd shaped hatch covers (roughly trapezoidal) that have dry rotted. Is there any source for replacement covers?

Dwindling supply
The US distributor of P&H had a small supply of them last time I checked. Contact your local P7H shop and have them order you up replacements.