Ramjet = 1 Barricade torso, Autotrooper arms and legs, two 1x1 horizontal clips, two cylinder elements from Kre-o Megatron, two 3-stud "L" shapes (red), two 1x2 (red), two 3 stud "L" shapes (black), one Lego knight "bullet" helmet with chin strap.
Thrust= 1 Sunstorm torso, Sentinel Prime arms and legs, (no wings yet), one Lego knight "bullet" helmet with chin strap.
Dirge = 1 kreon Police officer body + arms + legs, two hands from Kreon soldier, two 3-stud "L" shapes (gold), two 1x2 angled (gold), one Lego knight "bullet" helmet with chin strap, 1 Crankcase shell + windshield, (no cannons yet).
There are some problems, of course. I'm not crazy about using elements for the wings, but they'll do. I've also taken to fastening the wings together with a random 1x1 piece in the back. Dirge's flak-jacket keeps his helmet from sitting flush on his head. And, most obviously, they lose some symmetry by having the different torso designs. Ramjet looks like he might be a Cybertronian version of himself, and Sunstorm's chest might have too much orange. Dirge looks the most kitbashy of the bunch, but I kinda like having a more three-dimensional cockpit rising out of his chest. In any event, I thought the bullet helmets look fairly proportional...so I might just pop those on the official releases when they come out.