If you are considering the Marcof, I would really recommend the PPA2 over the PPA1. More load options,better parts.  Not sure but we may still have some new. I would have to get by Ed's, but I believe we a a couple 

If you're the patient type, keep a lookout for a used Herron VTPH-1MM. 44dB gain.

@mdrone 

The problem is that the Leben has abnormally low gain. Most MM phono stages offer around 40db of gain.

I have had the Leben in my system and quite frankly it is quite vague - not worth the money in my view. Even a cheapy Soundsmith phono at around $1k was significantly better. 

My suggestion would be to get another phono stage or if you have the Leben, sell it and use the money for another phono.

Did you discuss budget.

This versatile ModWright tube mm/mc was listed 4 days ago, plenty of gain (read the manual for facts). note: canadian dollars

https://www.canuckaudiomart.com/details/649985374-modwright-ph-90x-tube-phono-stage/images/4486346/

https://www.modwright.com/sources/ph-90-tube-phono-stage.php

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Another versatile unit 

https://www.usaudiomart.com/details/649899087-vinnie-rossi-lio-w-avc-tube-stage-dac-phono-headphone-xlr-out/

@mdrone as you have a Soundsmith cartridge you may wish to consider a Soundsmith Phono. https://www.sound-smith.com/phono-preamps/soundsmith-mcp2-phono-preamp.

I’m using an MCP2 MKII with my Zephyr MIMC on my Gyrodec w/ SME M2-9-R tonearm and I’m very happy with it. In all honesty I expected this little SS phono to have a temporary place in my rig. It’s still here after 3 years.

That said, I’’d still like to try a Modwright 90x, @elliottbnewcombjr located a great deal on one. I’m tempted to explore it further.