Hi Dani
Welcome to the club from Scotland. I very recently joined the forum and have found, as I'm sure you will, lots of help and advice is available. I can fully understand the need to improve the cooling in your Morgan, on my first holiday abroad in Mallorca we hired seat panda 🐼, Drove up some stunning mountain roads and stopped to take in the views at the top, I turned off the ignition, exited the car, locked it and walked away. The engine was so hot it continued to run for around a minute or two !!! We began to wonder if it was ever going to stop.
Enjoy your time driving in your beautiful island, very jealous !!!