A vastly different take from my Caledor list, but one that is more readily available and easier to expand to thanks to the Griffon riders from the IoB set. Here's my first draft, at 2k first.
(Gen) Prince
+ Griffon
+ Heavy Armour
+ Lion Cloak
+ Great Weapon
+ Longbow
Archmage (Level 3, Lore of Beasts)
(BSB) Noble on Griffon
+ Reaver Bow
+ Heavy Armour
+ Halberd
Lothern Sea Helm
+ Skycutter
+ Ruby Ring of Khaine
+ Bow
39x Lothern Sea Guards
+ Full Command
5x Ellyrian Reavers
+ Replace spears with bows
+ Musician
3x Lothern Skycutter
+ one of the Skycutters have the Eagle Eye Bolt Thrower upgrade
= 1994 pts
I bet it'll look glorious!