OSCAR or NIPT?

Hello mommies! My husband and I are seeing a gynae from Mt Alvernia now and we’re 8 weeks pregnant. We’ve been asked to consider whether we want to do the OSCAR ($450 before GST) or NIPT test ($1.2K before GST). Can I ask: - Which test should I go for? I’m currently 28 years old and more inclined to go with OSCAR because of the lower cost. - Is it possible to have the test at KKH to leverage on their lower price for the test, but stick to our gynae at Mt Alvernia? My husband and I wanted a dedicated gynae which is why we went with private hospital but the gynae visits are proving to be really expensive, and even the price of the test is higher :( Thank you so much!