This may or may not help. I owned an 87 4Runner and my 90 LandCruiser. While the 87 did have IFS, the ride was not all too much different than my 62. Once I put on the OME lift, the ride became stiff, but not rough. Put it this way, my wife likes to go for rides in it. She's a cream puff at times.
As for speed, I can hold about 70-75 on the freeway without feeling like I am straining anything. Of course, I have 33s so that probably has a little to do with it. By no means is my 62 fast. Put it this way, it's bright red and cops don't even pay attention.
I know the 80 is a 'better' rig, but like others have said, I love driving something that nobody else has. I get comments EVERY time I go out.
