The stalling wouldn't bother me. Don't stall him. Problem solved.
Cow-kicking depends on the motivation. Could be pain, but I'm betting it's anxiety. If you are able to keep him from anxious situations, it could be manageable.
Trailer-loading, if it's just a matter of refusal and not total blowing up and freaking out, is fixable.
Not wanting the mouth touch is just a matter of needing to be desensitized.