The Atlanteans in Jakarta are not from Singapore. They were
bought first-hand in the 70s and 80s. They have the same Metsec
bodywork as the Singapore Atlanteans, hence the fairly common
misconception. The Singapore Atlanteans were sold to Hong Kong and
Shanghai. I don't know about O305s but there are a large number of
Volvo-Ailsas in Jakarta too.
I spotted 3 NAC Olympians at Boon Lay this morning. 2 of them were
7164 and 7138. Numbers are dwindling down fast as the NAC VOs are
seen more regularly on 182, 192 & 193.