Keep in mind that if your Devs are manning the ADL, you could lose use of half your firepower depending on what you're shooting at. Without Flakk, if you Skyfire, you might be wasting missiles on snapshots, or not firing at all. What I'd suggest if you want to use the Devs is to Combat Squad the Devestators, OR grab a 5man squad of Autocannons, and use that one with the Aegis. that way at least all the firepower is similiar, you have some throw away wounds, and your missile launchers are still doing missile'y things at all times.
Another option, which was never mentioned, is going with a Stormraven over the Crusader.