There’s more, no idea the link, I just look through them or google it. That one seems to be a picture of the whole thing but files should have two parts if you download them.
I posted elsewhere on a 3D thread I think but I got a local mob to make front door speaker spacers like BNE has , I initially asked for 10pr in the online order at about $110 total after selecting the fill I thought.
They ask what’s it for .
They came back saying my choice will fail in a vehicle environment and what should be used for fill/ thread stuff. It ended up $120 odd a PAIR…. Not far off BNE cost anyway.
So be sure to specify vehicle environment media.
I could do with some of what you want as well if you get a price.
New ones aren’t cheap iirc.