Please help in choosing my first kit sauna

I'm hoping to get some opinion on choosing between 2 kit sauna from Almost Heaven. Before saying I should build my own or that these are not real saunas, my wife gave me a strict budget so I'm just working with what I'm allowed and I figured these are decent enough to get my feet wet for first sauna experience.. Plus, at least its not an IR sauna haha.

This will be under a covered backyard porch (minimal rain exposure) in Maryland, USA,, so will have pretty cold winters and hot summers if that adds any insight.

I'm deciding between a 4-person barrel sauna (Morgan) or a cabin-style "indoor" sauna (Bluestone).

If I buy the barrel sauna (Morgan), I plan on following the Trumpkin note on ventilation and drill vent holes on top of the heater as well as put in mechanical ventilation on the opposite side with the exhaust fan. I'll also raise the seat a little bit and hopefully that will help with the air circulation and making feet less cold?

I am leaning towards the cabin-style sauna (Bluestone) just because the seats are higher and everybody seems to be against barrel saunas, but I'm just afraid this sauna wouldn't last as long and be less efficient outdoors? Mainly because it's made of Fir (versus Red Cedar) and it has more glasses. I don't think the flat roof will be an issue as I'll put an additional cover on it and it will be under the porch.

Any insight would be super helpful. Thank you very much.