Pace RC31 (which is what the exotic and chinese ones copied).
The only other thing to check is the offset, dunno what the vagabond is designed around but ~435mm rigid forks are likely to be ones intended to suspension correct 80mm travel 26″ bikes.
It’s unlikely to make the bike completely unrideable but a different offset will affect steering feel and the bikes stability.
All that having been said, you won’t save a massive amount with that sort of fork, they mostly weigh 750-850g, if you could find a monocoque fork the correct length and clearance then it would be substantially lighter.