Brunei Stamp $5 Japanese Occupation 1942

Yesterday I mentioned one of the 4 Brunei stamps which I don't own and by the looks of it can never afford to own. The other Brunei stamp which I don't own include this Brunei $5 stamp overprinted during the Japanese Occupation.This stamp is very rare and only appears every now and then. But whenever it comes it, the price tag is scary. This one is currently out on ebay at the starting price of