Yes, we have lots of sheet metal and rubber. Here's a ink to the catalog page for the floor pans (see part number 8):
Here a link to the rubber:
Morris Mania Tech Team
The Morris Minor Parts and Accessories Experts
Here's the right front floor pan:
When you say "passenger side" which I'm assuming means the passenger side on a left hand drive car (ie, the front right side).
Morris Minor Tech Team Response:
Yes, sedan and convertible are the same when it comes to the floor pans.
Your Morris Minor Part Expert.