You people are fretting over map size, but look at the quote itself. The root of the problem is the kill triggers, which can be simplified.
There IS a perfect trigger kills to cash that adds different amounts of cash for each individual unit killed.
http://www.staredit.net/index.php?tutorial=25[right][snapback]268344[/snapback][/right]
It is so far from perfect! You require a unused comp and a location on map. And I haven't got none to spare.