Sohna property negotiation: Am I asking too much?

Negotiating with these builders in Sohna feels like a total joke sometimes. I'm in real estate myself, but buying for my own investment feels completely different. I've been looking at a 2BHK around the SPR corridor, maybe even towards New Gurugram sectors, aiming for that ₹1.2 Cr mark. Saw a Godrej project and a BST Developers one. Builders always quote these 'fixed prices', but off the record, everyone knows there's wiggle room. How much can you *actually* push them for? Is a 5-7% discount realistic, or am I dreaming? Also, seeing a lot of pre-launch offers. Are those real discounts or just marketing spin to get early money? I know about the super area vs carpet area games, but what about the actual property price? What's the real all-in cost for a 2BHK near SPR once you factor in PLC, parking, and all the hidden charges that pop up closer to possession? Wondering if I should just look at secondary market deals in DLF Phase 1 instead, might have more negotiation power there. Any recent experiences?