"The ten ships have been delivered under a fixed-price contract and a project budget of $3.93 billion in 1988 dollars, or about $7 billion in 2006 dollars."
https://en.wikipedia.org/wiki/Valour-class_frigate
Well, if wiki is right (if), South African purchased 4 MEKO200 in 2007 from Germany for R9.65 billion (roughly A$1.06billion). Of coz, the ANZAC class have much more advance (expansive) stuff than the bare-bone South African ones. And RSA probably had less project cost as all ships were simpler and all were built by HDW in Germany.
Valour Class - A-200
"According to a September 2006 report in Business Day, South Africa was ready to take up an option for a fifth Meko class A200 frigate from the German frigate consortium that built four other ships for the South African Navy. The report was something of a surprise as there had been no public indication that the navy was interested in the extra ship. According to Business Day
the fifth ship would costa in the region of R2 Bn, considerably more than the R1.2 Billion paid for each of the first four frigates. The report stated that the chief of the navy, Rear Admiral Johannes Mudimu, had confirmed the intention of buying the extra ship. He said the original contract had been for five ships but only four were taken because of budget constraints."
So for project vs projects, it is A$7 billion for 10 ships vs roughly A$1.06billion for 4 simpler ships.
For ship vs ship, using vonnoobie's method, the HMAS Perth (A$144.8m in 1988) would be A$188.8 by 2007 and the South African deal is roughly A$132million per ship by 2007.