My rear Araya Aero 1.75 with lo flange Suntour (the stock ultra burner wheel)
has 180mm spokes on a 3 cross.
(not sure if the suntour and suzue are the same, also i think it makes a difference if they're 1.5s or 1.75s)
Sorry I know that's not exactly what you asked.
Now all I've got to do is work out the front wheel with the high flange.
Have you tired the spoke calculators on the www?
thats where I'm heading next