UPDATE:
my 3 cars: daily, streeter & tracker
gutted the interior
removed the rear door skins after i got those pesky window winder clips out
began to clean up. dunno wether im gon take the sound deadening out as im scared off what i might uncover in some spots. so jus gon clean up real well with degreaser/kero/petrol
mor up once i get it all clean up and s13 seats in hopefully