If they were smoking local I'd go around nimbin and talk to locals, they'll send you hiking
old mother sativa Mullumbimby madness or cape tribulation sativa.. find them, please.. .. imported itd been from Thailand.. if you want to make the hybrids from original seeds to have what they had. good luck with that
apart from not being around anymore, you could save yourself lots of time ,a lifetime and your child's) and run the old school strains to see if they are what your looking for.. you'll realise how far back into a mix you need to go to get your flavour.. no point making what's created, repeating what's already failed or not knowing why you want to add something to a mix before knowing what the parents are, you know?