A little personal experience, if I may - I am a sucker for good customer service, mostly because it's such a rare treat these days. My last coilover-related experience was entirely due to me being a cheapskate, so I ended up with a used set of Megans. They were in ok shape, and the adjustment range is excellent, I'd say that they could go within an inch of stock height. But I hated how soft the springs were. 10F/8R, that's basically stock specs. I called them up, and this guy, Nelson, went above and beyond to research some stuff for me, including a conversation with their engineering to find out how stiff of a spring their dampers can handle without revalving. He charged me $100 for a set of 14F/10R, and it's almost perfect. I should have bumped it up to 16, but whatever, maybe next time.
Anyhow, the point is, if it's too low, you could always upsize the spring. If 180s put you an inch lower than stock, then 200s will give you the range you want.