Finally got my title search results back on my suspected '91 FHP. While I unfortunately didn't get a photocopy of the original title, I did get a computer printout that shows the original owner was DSHMV/ FHP. At least proves that it was an FHP car. Plus, it only cost 50 cents
The car went to Illinois after Florida, so I'm gonna try to get a copy of the FL title from them. I was able to do that on one of my other cars, so maybe it'll work to get the unit #.