Choosing between these 2

Hi, I'm looking at an indoor traditional sauna and tossing up between Kiva https://kivawellness.com.au/products/reset-traditional-sauna-3-4-person and Alpine https://alpinespas.com.au/saunas/traditional/athens-3-4-person-indoor-traditional-finnish-sauna-gen2

I want one under 8k, and it must have airflow and the feet at the height of the stones (or close enough). I'd love to know what you'd recommend and why. Thanks so much (I'm in northern nsw)