I see the replies went to my email spam so sorry for the late reply.
Yes, the retail price is silly. Hence why I came to this forum because I saw a previous offer on this site for an amazing price so I was reaching out to see if I could stir an offer.
Anyway, I found out there is actually an older version of this tent produced by FECSA and some other swedish company, I found used versions of it on Polish and German sites for a STEAL compared to this silly £800 range. There is an updated Polish licensed one that is 50-66% less and has been demonstrated to be just as robust and has an extra foot pole to reduce condensation or leaks caused by pooling, has an extra foot vent as well. The new model of the Polish version does have YKK zips.
There is also a slightly older version by Polish company (2018) that is identical to the carinthia observer and used Gore Tex (printed on the fabric so it's not a mystery) for half the price.
Anyway I am interested in hooped bivy bags that CLOSE completely because I am not interested in ticks, I don't always have some insect repellent either so hold your tongue on that suggestion. I'll never, ever, ever go tarp camping/cowboy camping for this reason. I wanted some headroom too, this design provides more than other hooped models, and I also want the two viewing spots that this design provides. The Defcon 5 and Russian Ratnik Bivy have this back window/ mosquito net as well but their breathability compared to this model is probably not close and I can't find much info on their rainstorm performance.
I'm not interested in Snugpack due to quality control issues I've seen in Snugpack reviews. I like the ionosphere space but their price is just silly now. I've seen other issues with that one too. And frankly smaller form size will work better in some areas for visibility issues.
I do not care about kits that are "half the weight either". I see all this panicking about tents over 1 kg. This tent's 1.75kg is nothing for me. I used to backpack with a 5kg tent so ya, this is feather weight for me and I won't need to worry about punctures that lighter fabrics from civi companies are more vulnerable to. I would die if I spend £400 on a tent that I half to treat like a delicate rose. I want military grade durability that can be stomped on. This is also compact enough.
Someone asked, why not just add a camo tarp? Because I've already spotted camp locations where I can't simply hang up a tarp on trees and i'm not bringing treking poles either. So that's why. I don't want any tents made out of brightly colored material so that ruled out a lot of brands. The Rab is equally or more expensive than the military grade options i've now found so ya, no thanks.
I was about to go with the dutch bivy but it only has one single mosquito net window, the 3-5 other options I found have the extra window so I much prefer that.
Anyway, I found my purchase options. There's my 2 cents. I went way to down a rabbit hole looking for options, I'm happy I found options.
Before I forget I found 1 more interesting option by a company in Canada called Fellfab. Their tents are in CAD price so they are well priced actually for military grade. There is so little info on these bivies so I went with the option I found with a proven track record but they are formerly known as Integral Designs which did have a good track record.
https://www.fellfab.com/product-category/military/shelter-systems/bivy-shelters/