So this is from what he wrote in that thread:
"Bought it for Y2.7mil [roughly $27,000 AUD] in Japan, and as it stands, before rego/engo it probably owes me $35k."
And,
"To get a car landed for early 20s you'd have to buy at about Y1.3-1.4m, and while there are cars at that level, that's at the very, very bottom of the market. There seemed to be 3 tiers of cars: Y1.5~2.0m (unrestored) then a big jump to Y2.5~2.8m (restored but stockish), then another big gap to cars Y3.5~4.5m (which are full-house showcars like say, which have had RB26 conversions etc).
Cars in the lowest band looked like they needed work, the cars in the Y2.5-2.8 band were the "nothing to spend" cars (which hasn't quite turned out to be true in my case!)."
35k landed/registered in Aus sure doesn't seem like much for a Hako.. However, he bought that one in 2008 - they've risen a lot in value since then. If a decent looking 2000 GT/GTX were to be sold in Australia today, I'd assume it would fetch around the 55k mark, but I'm no expert.