HIM Shoe Dilemma

The fairways there are relatively firm with the majority of the course on cart paths (cement) and connecting roads (asphalt) so I wouldn't go too firm.

More importantly, I would look for a shoe with good drainage.  You will be dumping a ton of water on yourself and your shoes will get waterlogged pretty quick. 

the grass is like 1/3 of the mix of terrains.

most of it is asphalt road, and then up n' down cement cart path & hotel path.

the grass is tough, and difficult to run on, due to it's wet and sponginess....yet it's not the majority of the course, so I wouldn't select a shoe based on just the grass.

the part that hurts me the most is the cement actually.

Yes, you definitely want good drainage. I really liked racing in the Avia Bolts, until I did Kona. I used them there and they just soaked up all of the water I threw on myself to try to cool down. I switched to the Zoot Kiawe's and have been happy with them.

http://www.trisports.com/zoot-kiawe.html