The two rugs on ETSY are from my collection. The larger one is a Kashan (250.000 knots m²) the smaller one is a real Nain (above 400.000 knots per m²).
I don´t have all my rugs on ETSY or other platforms - you can find
Kashan 11 x 8 ftIt also has 250.000 knots per square meter, but it is a little better wool quality than the rug on ETSY.
If you want a new, real 9 la Nain 6 m² of good quality in this size you should calculate somewhere at 3600 - 4200 USD plus VAT. Tabbas or Neishapour would be less in price, EUR 1500 - 2500 in 300 x 200 cm.