I recently came across these wheels and really like them. I know nothing about Koya and I am not sure about the offset, etc.
Koya Koya Falcon
Size: Bolt Pattern: Offset:
20x9 5x114.3 35
20x9 5x120 15
20x9 5x112 35
20x10 5x112 35
20x10 5x114.3 35
20x10 5x120 22