Level of difficulty/skill required to install A/C kit?

[Napoleon_Tanerite]

I'm seriously considering getting an A/C kit, probably the ODIron one. On a scale of 1 to "OMFG I wouldn't wish this on my worst enemy" how tough is this for a NOVICE to install?

 

[Samyguy]

what kind of prices have you found?

For now I'll just open a window!