Basically a “grenade” construction outsole/upper with a drop in midsole? Looks pretty well done.
Nordmade, good luck with the project! Lots of people have taken a crack at this but no one seems to have been able to pull it off fully… Yet. There seems to be a fascination with it.
I wonder if anyone would sell it as a “kit”. One outsole with 2 or 3 uppers so you have some parts to interchange out I the box. We are doing that with a headphone this year. It comes with 2 of all of the parts you can interchange. Called the BOOM Swap polkboom.com is for sale | HugeDomains