I picked up a Chill Gorilla tarp recently. But The one I found doesn't match the specs you posted. Here it is on Amazon: https://www.amazon.com/dp/B06X9SCN5D

It's centerline is 142" (11' 10") and it's width is 108" (9'). It's still the same weight you listed.

I definitely consider it budget-level gear, but as a new backpacker, it met the budget constraints I set for myself.