It looks like a smashing tent. We have looked at this one before with the solid inner, not the Dyneema version, the normal material one but even then the price put us off, especially with it being an unknown amount added on when the tent gets to the UK.
I have no advice about Dyneema, sorry. It is very expensive to buy anything made from it so I've never bought any.
Thanks for all the photos of the tent, very thorough
I hope you have some great camps in it.