Pre-launch deal for Inner Spaces in Srikrupa Layout?

My lease ends in 3 months, and I'm stressing about this purchase. I work in real estate, but buying for myself in Bangalore feels different. I'm eyeing a 2BHK in Srikrupa Layout from Inner Spaces. They're pushing pre-launch pricing heavily, saying it's a steal. Honestly, I'm wondering if that "discount" is worth the uncertainty, or if waiting for open market pricing is smarter. Beyond stamp duty and PLC, what hidden costs should I anticipate for the *real* all-in cost? Pre-launch or wait, what's your take?