I bought my '97 Foz in 2002, second hand with 90'000 km.
The first year, I changed the OEM springs for Dobinsons, the wheels and tires, 1 inch lift blocks and a 8 mm thick aluminum sump guard after a big dent in the sump but no hole !
The rear Dobinsons were too hard, changed them for SF springs on SG self leveling struts.
In 2006, I wanted to go further with the mods and prepared the Foz for a saharian trip to Morocco, fitted some BFG AT's, Quaife front diff, rear SG LSD diff, SG disc brakes and larger SG rear track.
In october 2007, ready for the trip, drove about 1'500 km on very sandy/rocky trails and corrugations that blew the rubber of the rear top hats but drove back home with pieces of truck tires (no Subarus in Morocco !)...