I don't know these other amps, but I will say this. Don't write off the Primaluna Amps as "low power tubes". They have superb transformers, and they deliver the goods. I used my Dialogue to run B&W 803s, which are notoriously power hungry, and have a wide range of impedance. The Dialogue handled them easily. Now I'm running Revel F228 with a Dialogue and they sound fantastic.
You could get a used Dialogue in your price range... although they are rarely for sale. There's a reason they are hard to find. People buy them and keep them.
You could get a used Dialogue in your price range... although they are rarely for sale. There's a reason they are hard to find. People buy them and keep them.