Both of these series have their quirks. I have owned a 60 and an 80 at the same time, still own the 80. I also owned a 3rd gen 4Runner. Both the 60 and the 80 will both need a lot of PM if they have been neglected. Toyota parts are not cheap, but the quality is excellent. I miss my 60, but will never give up the 80. If you have never owned a carbed vehicle before you will have to get used to that. I see your in FL though so the cold weather side of things isn't as big of a deal.
As was said above, the 80 is way more comparable to your 4runner than a 60 is. 60 owners are special, and it' sort of hard to go from a more comfortable vehicle to a less comfortable one.
Maybe I missed it buy why do you want to get rid of the 4Runner? I miss mine, and other than being a bit smaller and not having a solid front axle, I find it somewhat comparable to my 80. I feel the 4Runner was more fun to drive as well. They both seem to feel like they have the same amount of power, but the 4Runner will get at least 5 MPG better.
I'd say make sure you NEED to change vehicles. I'm always buying and selling rigs and it's almost always at a cost. Even if you don't lose money on the sale, you always lose bringing the new one up to snuff, paying taxes, inspection etc. Don't get me wrong, I love the thrill of a new rig, enough to keep buying different ones and eating the lost money.
If I were you, I would either stick with the 4Runner and add an accessory or two to breath new life into it. Or get an 80 that has verified maintenance records and factory lockers. Throw some 33" tires on the factory suspension and drive it that way. Save the suspension money for gas, you will need it.
