Summer will be upon us soon! Make sure you check the Meets subforum to see if there's a get-together near you!
Have you checked the water drain funnels for blockages? They live in the soft-top stowaway tucked in the corners closest to the engine block. When I got my Capri these were clogged and it caused several inches of standing water in the interior.
Also check under the dash cowling, near the intake for the outside hvac air. This can back up into the interior via the hvac system