sure you will find people who make taylor made shirts.
have not really a idea in palmar.
just ask around, people who are living there.
Port Louis, in Waterfront, ask the big once there, i know they did it before, some years ago
...or Laughing Duke
in Waterfront, first floor, opposite the Diesel Shop.
but you get very nice high quality shirts here nearly anywhere, ok not on the market
hope it helps