Recommendations for a compact enlarger?

I don't know how many lens elements they have. But they make some fine looking 16x20 prints.

I have an 80mm Rokkor that came with my enlarger. I've not tried it head to head with German lenses, but did a test between it and my 135 El-Nikkor the other day (at the same magnification), and there is no discernible difference, if that helps.
Haven't counted the elements, but I think it's supposed to be a 6 element lens.

If you are looking to only enlarge -135 a Leitz Valoy 2 is the ticket. Mostly good for 8x10s and smaller. Not an issue to break the Valoy down each DR session.