The only thing that bugs me about the lead is the 0 IVs. The only Ttar your not outspeeding by the recommended lead Abomasnow is my specialy designed one, and only I (unless newbs stole my set) use, which could be countered by simply using 29 speed IVs. I suggest going through your speed IVs to see if you can get a stronger HP Fire or something (that could be irrelevant because I have no idea how Hidden Power works off of IVs), or just so you can outspeed things besides that Ttar that you wouldn't with 0. I hope that made a little bit of sense.
Also, on Tran, if Garchomp and Salamence are the only things you're worried about, try Dragon Pulse over HP Ice. It's still a KO, but is you're going to get locked into it, I find that Dragon is a better type as well as having a higher BP, but I see no problem using HP Ice.
The other two core players, I'm know very little about, so they look good.
As for the other two, I agree that Gengar would probably work better than Duggy. Also consider the Lucario over Chompy. Not only is Garchomp way overused already, but Lucario handles Blissey who otherwise can come in on anything but Abomsnow unless you predict with an Explosion.