The log style was 87-90. Anything further was tubular...doesn't mean its not a old motor with newer header.
Check out round the 3rd & 4th cylinder, on the drives side. You will find 4 number. 2686 is 87-90. 7120 is 91-95. 0630 is 96-99. 0331 2000-2006.
I would clean it up, grease things up, solve small issues, like leaks, warm parts ect ect. You've got a great base so build off it and fix it up some,
[QUOTE=Motorcharge;15252353]Overlanders do it over land via overlanding because they like to overland?[/QUOTE]