[jray3]

Other than " at least 50 miles" in the original post, I haven't seen Natalya define the essential mission parameters before folks got in the weeds on technical details. How far, how fast, and how much $?
30 kW may get you there, but from experience, I'll say that 170 kW of Zilla power is a helluva lot more fun! Besides throttle ramp rate, clutch selection is a good way to limit drivetrain abuse (better to slip than shred), and the clutch is an important safety feature as well.
There are two Gen 1 Insight conversions in Portland Oregon; Gary Graunke and John Wayland.
An AC-driven car with regen adds up to 10% range and a new dimension of driving excitement, but the cost/benefit ratio winner is still a series motor and powerful controller, especially since there are so many secondhand bargains these days. The 11" is not only overkill, but would be far less responsive than a 6" or 8" motor. I wouldn't go even 9" unless you're going for a Zilla and beefier tranny.
LEAF modules are about the easiest, most affordable battery option for DIY, but CALB cells will last longer and fit in many spaces better.
First item to buy for your project: a towbar, dolly, or trailer.
Good Luck,
Jay