Hi all,
Hope this helps someone. I eventually made an experience letter from Kuwait.
You need to go to the traffic department office corresponding to your home address in Kuwait. Once there go to the printers, where they print all sort of applications like renewing a driving license. Tell them you need a driving experience letter due to travel to Canada, they will know. You then take this letter to a couple of managers onsite for signature (the printers can guide you). Finally you will need to go with this letter to the main traffic department HQ in Assima to get 2 more final signature including the under secreatary singature. For the last signature it will take a few days as they need to send your paper to another location by internal mail for the under secretary. Once done I advise you to authenticate this letter from Kuwait Ministry of Foreign Affairs, not sure if this is required, but I did it anyway. It's highly recommended to have this letter translated it in Canada, it will be more expensive for sure, but it will give a better feeling to the staff at DriveTest in Ontario (maybe its also a mandatory step, but I'm really not sure). You will also need to translate your Kuwait driving license, even if your name is already written in English, again its recommended.
I went earlier to a DriveTest location, gave them my translated papers and originals, and things went very smoothly. They kept the original experience letter in Arabic, took a copy of the translation, and returned the original translation to me. Went for my written test, passed, schduled my G2 road test, and now waiting to hopefully pass to get my full G license
Good luck,
-Gus