For aluminium chassis, lian li and silverstone stands out. However, it is found that v750, v700 or v650 all cannot be mounted with 100i. The few option for lian li are all huge towers, such as pc-a71f and x2000 series chassis. Silverstone produces great aluminium case such as the tj07, ft02. Ft02 is surely the best aluminium made air cooled chassis out there, and maybe you can get a more quiet pc with a NH-D14 or a silverarrow there than a 100i, as they can be assisted by the bottom 180mm fans.
Corsair 650d is also a great choice, but the overall airflow would be worse than FT02, even with front 200mm replacement.
The Fractal design Define XL R2 would be somewhat the best choice for your 240mm rad, and the overall looks.