"Vegan-friendly" Yurts

[rbfx]

Dear yurt community,

I'm new to this forum, having just discovered it after a few weeks of trying to research the problem my girlfriend and I are facing in the process of buying our first yurt.

We're both committed vegans and most yurts we've found contain some animal products. A yurt company we found in Spain (we live in Portugal) agreed to replace their usual horsehair ropes with synthetic alternatives, which was great, but the much bigger issue is

insulation

.

All the yurt companies we've spoken with insulate their yurts with some kind of wool (sheep, yak, etc) or a type of reflective foil that makes a lot of noise during heavy wind, which we get a lot of in the coastal mountains where we live.

I naively assumed that replacing the

insulation

with a natural alternative, such as hemp or recycled cotton, would be simple enough but apparently not. So far it looks like it's going to be expensive, difficult, and hugely time-consuming.

My questions are:

Has anyone else faced the same issue?
Does anyone know of suppliers of natural insulation specifically for yurts?
Or does anyone have other recommendations we're overlooking?

It seems there are some good products in North America, such as 'UltraTouch Denim Insulation', but shipping pallets of this to Portugal is prohibitively expensive for us.

Any help would be hugely appreciated!

Many thanks, in advance.