ax0n
SILVER Star
Noico for the butyl, Second Skin Audio for the MLV/Closed cell mat (heavy on the floor) and the open cell melamine (light in the doors and panels)What brand sound proof did you use, thickness and approximate sq footage do you need?
I probably used 70sqft of noico but don’t quote me on that specifically. I can try to look at recipes and update this accordingly.
I used 4 of the Luxury Liner Pro MLV sound barrier for sound blocking

Luxury Liner Pro™ MLV + Foam Auto Sound Barrier Sheets
Get the best mass loaded vinyl and heat insulation barrier for your car. When used with Second Skin Audio sound deadening, any car can be a luxury vehicle.

And I used 3.5 or so sheets of Megazorbe pro for sound absorbing

Mega Zorbe Pro™ - Hydrophobic Melamine Foam Panels
Mega Zorbe Pro is extra thick (up to 2") for the best sound absorption and thermal insulation. Used in vehicle, marine, and architectural applications.

Planning to do a real write up but here are some pics for now….