Japanese Plum Yew (Cephalotaxus harringtonia) pollination - where to get male/female plants?

This seems like an interesting plant that can tolerate the shade in our front yard: https://pfaf.org/user/Plant.aspx?LatinName=Cephalotaxus+harringtonia+nana

(or any cultivars of Cephalotaxus harringtonia)

However... it isn't self-fertile. Other resources go on to identify that a male plant is needed, not just another cultivar for biodiversity. Because these named cultivars everyone is selling are likely female grown from cuttings, I can't simply buy two.

Aside from starting a bunch from seed and waiting a decade to spot the male, does anyone know where male pollinators of these trees can be purchased? Within the EU would be lovely. Honestly, I am a little bewildered that they are stated to be such a decent permaculture plant and yet I cannot find them for sale in anything other than an ornamental context.

There are a lot of vendors ( https://www.goedkopeolijfbomen.nl/cephalotaxus-harr-fastigiata/ ) of these trees, but in my four-hour search I cannot find anyone offering up a known male counterpart. I'm starting to think I'm missing something here!

Does anyone have any fruiting Japanese Plum Yews? If so, how'd you get there?

Hi Don, Yes the plum yews do seem like a great plant for a shady spot. I've seen them fruiting in  Devon and Cornwall. pfaf.org says that female forms can occasionally form unfertilised fruit, but that wouldn't be ideal if you want a crop from it. I couldn't find out what the cultivated forms were either. I'm only really familiar with UK suppliers (ART and jurassic plants are some of my favourites) You could try Lubera - they often have interesting cultivars, or maybe the Balkan ecology people may be able to help.
I would probably try and get some seed grown babies and just wait a few years.

I am not sure where you would find this plant in Bulgaria.

This one is called Duke Gardens and is a male cultiver:

The cultivar 'Duke Gardens' was discovered at Duke Gardens in Durham, North Carolina

It is a male cultivar and will not produce fruits.

https://plants.ces.ncsu.edu/plants/cephalotaxus-harringtonia-duke-gardens/

Thanks so much for the very helpful feedback!

There a number of nurseries across the EU that seem to have "Duke Gardens" and I have a few inquiries in for availability / shipping (many places will ship to Bulgaria as an EU nation but it's not by default on their shipping list of countries).

I very much appreciate the knowledge, and it's being put to use. :)