Managed to track someone in KL who sells liquid egg whites. The price quoted to me is as follows:

1. RM19 for 1 litre (consists of 28 - 30 eggs)
2. RM33 for 2 litres (consists of 58 - 60 eggs)

I'm awaiting his phone call to find out where we can COD. Will keep you guys updated if you're still interested.