Could the Edain have a Gondor kingdom during the First Age?

[Victariongreyjoy]

If all the houses of the Edain reunited, could they have been many enough with skills to build a kingdom similar to Gondor in the Beleriand?

[Galadriel55]

Gondor was built with some of the knowledge and skill of Numenor, which the Edain of the First Age didn't have. A First Age Edain kingdom would likely look very different than the late Second Age Gondor.

[Victariongreyjoy]

Gondor was built with some of the knowledge and skill of Numenor, which the Edain of the First Age didn't have. A First Age Edain kingdom would likely look very different than the late Second Age Gondor.

How different? More like Rohan and Dale?

[William Cloud Hicklin]

The Beorians had pledged themselves to the service of the House of Finarfin; that of Marach/Hador became lords of Dor-Lomin as vassals of the House of Fingolfin. The Haladin had no interest in being ruled by anyone but themselves.

So, no.