MP-55 Nightbird Shadow came in stock yesterday at RoboRobo (also SGD150) so TFH should be putting theirs up any day now.

MP-53+ Senator Crosscut came in stock 2 days ago at TFH (SGD100+16 shipping), which I bought but since has dropped from their website - not sure if sold out or if it will reappear in stock (usually sold out items still remain on their site as sold out).