I found a Vortech V2 for cheap but it was on a chevy 350. With the right bracket can this work on my 88 mustang? Or do I need the serial number and contact Vortech?
You need to find another kit. Sure, you could reuse the head unit but by the time you got it all together you'd likely be over what a used bolt-on kit would cost.
They're almost like beer cans. Everyone probably has one tucked away somewhere that they've forgotten about.