Thats kind of a tight budget...
I would go for one or the other for now.
Get a kite, have fun, then get a board once you are really hooked.
Just think of all the lift ticket savings next season. You can use your kite with your snowboard in the winter and avoid the lift lines. :D
Foil Kites: Flysurfer 12m Sonic 4, 10m Soul V2, Peak 5s and 5.5m Hybrid
LEIs: 9m Naish Pivot, 12m Naish Phoenix
Land: 16" Dirtsurfer GP
H20: 134 Shinn Monk Chromatic, Slingshot 103cm Hope Craft w/ Axis Spitfire 840