Bro,
For AYC, you have to use Mitsubishi Diaqueen ATF SPIII (also known as AYC fluid) oil. It's mitsu's std auto transmission oil and it's not expensive nowadays as the spare part shops are bringing in already, unlike the old days where you cant find them.
Anyway, you can try to contact Andy, he has a workshop in klang lama and specialises in evos and scoobies. He also has the fluids. As for costs, you ask him lar, for AYC service is not expensive...
His number: 012-3861990 (Andy)