As long as your door is structurally sound (no rotting or broken framing pieces) and moves up and down smoothly, you CAN put an opener on this kind of door. I see them all the time in the Seattle area. Grab the door from the top center while it's closed and pull in. The door should swing out and rise without issue. If so, you can put an opener on it.
Honestly, for your situation, your type of door is the best type to have, as it requires little to no extra headroom. Now, that said, this hardware is definitely hard to come by. I do still remove them from time to time, but in the last year, I've only removed 4 of this type of door.
If you want to refit the door, honestly, your best bet is to talk to a company in western Europe, like the UK, Germany, or Italy, to see about buying the hardware you need. There are some companies that sell this hardware online, but you'll need to contact them first to arrange the international shipping.
For an opener, you may need to actually mount it back farther in the garage to get the operating clearance you'll need to make everything run smoothly. If you have to mount it back so far that the two parts of the door arm can't connect, you can make an extension with some thick wall metal electrical conduit. Good luck, and if you have further questions, feel free to look me up.
