I've got an Envision that fits that description in my garage. Needs a clean. Black back overflow in back left corner. 3/4" thick. I also have an Envision that fits that description that has an end overflow and is 1" thick. I'll PM you my contact info.
Matt
Hey man...Honestly, post them on CL for that and you may sell them. On here those are both basically weeds. They are both super easy and invasive. 99% of the people on here fight to keep both those species out of their tanks.
Good luck on your sale.
Matt