Unless you absolutely need a solid front axle I'd go 100 series.
https://expeditionportal.com/top-10-used-overland-vehicles/
"I can hear the screaming and gnashing of teeth from the FZJ80 owners (I am one), but the reality is – the 100 series is just better for vehicle-based adventure travel. It has a much better motor with 100% better performance and can even manage 1-2 mpg better fuel economy. The 4.7L doesn’t eat head gaskets or PHHs and runs ice cold (no AC shutoff in the Mojave). Sure it doesn’t have a solid axle, which limits the most extreme terrain applications, but the 80 isn’t really that good at extreme terrain anyways. The 100 series also has excellent brakes that don’t fade after a few minutes on a twisty road. The interior is refined, comfortable and quiet. Overall fit and finish is class leading, as is interior materials and durability.
On the road, the 100 series will cruise comfortably at 85 mph all day long and then shift into low-range and tackle the most challenging terrain with just a few modifications. If you install an OME HD suspension, new shocks and 295/75 R16 BFG ATs, you will go just about anywhere you want to go in fantastic comfort. These trucks have also proven to be one of the most reliable vehicles ever imported to the US and it is not uncommon to find examples with 300,000 miles that are still rattle and leak free – impressive."