2k White Scars - 45 points left to spend

[Whereswaldo]

Space Marine Primary Force using White Scars Chapter Tactics:

“Counts As” Kor'sarro Khan (Moondrakkan) – 150 {Attached to the Command Squad}
Command Squad (Space Marine Bikes, Apothecary, 4 Space Marine Veterans, 4x Grav Guns) – 210

Librarian (Auspex – Telepathy) – 70 {Attached to the Sternguard Veteran Squad}
Sternguard Veteran Squad (5 Sternguard Veterans, 5 Combi- Grav Guns, Drop Pod) – 205

Space Marine Bike Squad (Sergeant with Combi-Grav Gun & Melta Bombs, 4 Space Marine Bikers, 2 Grav Guns) – 150
Space Marine Bike Squad (Sergeant with Combi-Grav Gun & Melta Bombs, 4 Space Marine Bikers, 2 Grav Guns) – 150
Space Marine Bike Squad (Sergeant with Combi-Grav Gun & Melta Bombs, 4 Space Marine Bikers, 2 Grav Guns) – 150
Space Marine Bike Squad (Sergeant with Combi-Melta Gun & Melta Bombs, 4 Space Marine Bikers, 2 Melta Guns) – 140
Space Marine Bike Squad (Sergeant with Combi-Melta Gun & Melta Bombs, 4 Space Marine Bikers, 2 Melta Guns) – 140
Space Marine Bike Squad (Sergeant with Combi-Melta Gun & Melta Bombs, 4 Space Marine Bikers, 2 Melta Guns) – 140

Storm Talon (Twin-Linked Assault Cannon & Skyhammer Missile Launcher) – 125
Storm Talon (Twin-Linked Assault Cannon & Skyhammer Missile Launcher) – 125

Thunderfire Cannon (Techmarine Gunner) – 100
Thunderfire Cannon (Techmarine Gunner) – 100

= 1955

May be going up against a transcendent c'tan which is why the combi-grav sternguard / libby are in the list (the melta bikes are there for knights) .... I put the auspex on the libby since I was so short on points but idk what else to use for filler (was thinking a 3 servo skull inquisitor but without having the points for the psyker upgrade i'm not sure if its worth it).

Thoughts?