Tonearm for early LP12

I've bought an early model LP12 - pre valhalla, in fact. It doesn't have an arm, so I'd like some advice about what would be a good match. Budget is up to 300€, which covers Rega arms and their clones new, but not much else.

Happy to buy secondhand. My initial thoughts were an original Linn arm or a Rega, with perhaps an SME as an option.

What would you recommend?