Yeah, a third vote for the penthouse. I also use the Primos Excursion Plus with a 64" longbow.
More important than the height can be the placement of the shooting ports. You can have a blind that's tall enough inside, but where the ports are located so high that you can really get a decent shot. In fact, one of the best blinds I've hunted out of was a tiny little $50 pop-up blind. It had a triangle-shaped door that I propped open a little and shot through. I could sit on my knees and stick a gobbler pretty easy. However, my view was limited and sitting on my knees just wasn't that fun.