Your reconstruction is so close, I'm a little surprised you didn't stick with the original controls! Even though the BBC had a rather weird layout for all the non-alphanumeric keys. It's been a very long time since I played Thrust, and I've played plenty of WASD games in the meantime, but it still felt really strange to control it that way rather than the classic BBC Z/X/*/? for left/right/up/down. Pretty sure it was…
https://bbcmicro.co.uk/game.php?id=432
Edit: I'm going to have to go and revisit it again now... I was sure it was infuriating on a modern keyboard.