CaliTTop

Just did a swap from a 85 engine to a 89.
Decided to swap out the interior also, that 85 cloth just wasnt working for me.
Long story short i get everything in where it needs to go but.....
The tray (aka this) that goes over the E brake. The old one looks like this and is called a coin tray. I assumed (which i sohuldnt have) that everything would be interchangeable being that all the Fox stangs use the same Tranny. Can someone help me out and point me in the right direction of what to do, or what my options are? Thanks in advance!