first off LJ parts are not cheap ...... they have better frames than sami's.... the front axle SUCKS ( the drum brakes extra suck )
the engines are small and have low HP...... if you swap out everything LJ except the speedo , body and frame...... and paint it red..... you'd have a pretty good truck
The only way it is worth that much is if it is either mint or it's a pickup. We had a pickup where I use to work, lacks power and very cramped inside. Samurai is still the way to go if you don't want to have to trailer it in its stock form. I have even stripped the suspension and drivetrain out of my sj410. A 1L engine and a 4spd just don't cut it.
Good luck with your suzuki hunting. What about a tracker or sidekick with a sas?????