I tried this team out today. Didn't keep close eye on the time, but from what I could figure, was about 22-23 minutes start to finish.
P1 was no problem at all (much easier than ABC team) and I absolutely had translation on Wampa. Han and CLS should remove tm whether Wampa assists or not. So I'm not sure why you wouldn't want him assisting for more damage. Yes, Grievous gets a lot of dots, but Confusion prevents him from getting the buff and going in a loop. In fact, the danger level on p1 seemed so low that I think a full auto is possible--although there is the added danger of Finn attacking and triggering a 7th hit, so it would have to be tried.
By the end of p2, the tank had 103 dots (though the mass assist that killed it could have landed the 104th).