Using the twin assault cannon bits and optics from the Dark Angel vehicle sprue you can make a great conversion to have a Deathstorm Assault cannon drop pod.
First cut and sand flush behind the red line
Attach gun where you would normally have the stormbolter/missile launcher
I glued mine but by using magnets you could swap out all three.
Glue ammo boxes to the rear of each gun
And that's it
A way cheaper alternative to Forgeworld version and you can still use as a normal drop pod just one that is better than anyone elses in your FLGS