The pivot to spindle of the Alphason is 211mm
The Linn Ittok/Ekos are both 211mm pivot to spindle as well. The Ekos would be the best option if possible, the Ittok would be a sideways move vs the Alphason.
Not sure on the newer Linn arms.
Not sure on whether the cut-out hole is the same size - you would need to check.
Both the Ittok & Ekos work with a wide range of cartridges in my experience.