You need more lances imo,
i would run with vect (let them go first all the time he steals initiative on a 4, my friends hate this!), and a haemi with venom blade and liquifier gun.
troops
2 x 5 wracks
5 x 5 man wyche squads with haywires in a venom (no dual cannon as the extra shots are wasted against guard)
elite
4 x 4 blasterborn in venoms (16 x 30" lance shots turn 1, 6" move, 6" disembark, 18" range).
4 x incubi
heavy
4 x ravagers dark lances ( 12 x 48" lance shots, 12" move, 36" range).
2 x razorwings with DL, SC and 4 x Shatterfield missiles.
My tactics would be let them go first as you will probably steal the initiative, deploy like you are going first anyway very agressively with all troop carrying units as far forward as possible.
Start the wracks on objectives in ruins if you can, if they get shot at put them to ground for 2+ cover. With feels no pain they will stick around for a while.
Turn one as you should be going first move everything forwards, wyche venoms 12", Trueborn 6" then disembark the trueborn 6" making sure they are in range of his tanks.
Move ravagers into good positions for rest of hs vehicles.
Fire all lance weapons first, 28 in total! go flat out with the wyche venoms into his lines close as possible to vehicles you have not destroyed they will get 4+ cover for going flat out
. He wont fire his large blast weapons close to his own vehicles due to risk of destroying them. This should leave your wyches relatively free to assault turn 2.
Vect and the incubi+haemi should be relatively free to wander across the table unchallenged, he wont be looking at them when he has all the rest to deal with.
You should easily weather a round of shooting, then jets should come in to add to the fire power.
Its fun to play like this and he wont be expecting it, if your shooting goes well you should have it in the bag.
you could always go for wyche venom spam and have an entire army of wyche and bloodbride venoms, at that many pints you could have 12 x wyche venoms and 4 x bloodbirde venoms, 16 units full of haywires with 4+ cover sat right next to his tanks
.