I think you can make it work. Most people swap their 90-91 for a 92-93 without changing the bumper support and bumper support mounts. So I think you should be ok. If you wrecked your teg, and you have the 90-91 bumper support. I would hit a junkyard and get the 90-91 bumper support mounts. The bumper lenses will not swap over.
The blue one is the 92-93 the black one is 90-91, just a reference pic.