The koni option involves buying OEM LGT struts then installing koni inserts.
I'd considered that option, but went Bilstein for a few reasons.
The lower perch on the Bilstein is slightly higher than the LGT strut. The front shafts are huge, which means less compliance. The fronts are also inverted, pulling unsprung weight out of the front and partially offsetting the heavy tires.
The downside to the Bilstein HD route is that it'll be low. I corrected suspension geometry using a mix of Whiteline parts and spacers on the strut tops to bring everything into line. The result was a stupidly fun and incredibly well riding car. Maybe I'll get to drive it again one day.
I use an LGT STI short shifter linkage in my car.