There is one surefire think to make any Transformers AU great. Wreck-Gar!
The precious trash man makes everything good.
Here is is sweet and naive but incredibly wary of new people. However he can be easily satisfied with a treat or some music, or a film... Basically it's not too hard to befriend him when you get to it. The only problem is he wields a ax and has a motorbike so he can be a danger anyway.
