Okay so I figured people would prefer to help improve a list...
Here's what I came up with. What do you think? I have no idea if this would work
HQ
MoF - power axe
105p
TROOPS
10
Tac Marines -
plas, missile, vet serg, power sword
in Rhino
230p
10 Scouts - snipers, cloaks
140p
ELITES
Ironclad - heavy flamer (instead of storm bolter)
145p
10 Sternguard - 10x combi-plasma, drop pod
365p (!)
HEAVY SUPPORT
3
dev centurions - grav cannons,
amps, missiles
280p
Thunderfire
100p
Vindicator - siege shield (more coz it looks cool than it's actually useful)
135p
TOTAL: 1500p (exactly)