Well you know, I don't mean to take every aspect of it and unify it, but take the main ideas and sort of merge it. I was thinking that since Virtue Ethics is agent-based, and Kantian ethics is sort of action-based & motive-based that maybe you could unify the two.
I am sort of a Kantian myself, and I do believe in sort of virtue, but not to the extent that virtue will always give you happiness, though it might, I do believe that virtue is its own reward.
Anyways to what I think.
The problem with Kantian ethics is that it can sometimes contradict itself, but I believe that that is something that can be solved.
Here's what I got so far.
Every decisions that we have to make, we must make rationally. Reason, however must be based on something. What must it be based on? It must be based on what is "right". How do we determine what is "right"? Well first we must look to our own nature. We know that life is right for to think that life isn't right, that means that we deny or desire death. Thus our conscious life is "right". We also know that pain is a signal to avoid harm, and thus it is "right" to not desire pain and to not cause pain unless it is necessary as in going to the dentists. It is also "right" for us to be autonomous and not be slave to people and it is "right" to not mutilate our own body.
Now this is where Kantian ethics come in. The law of universability. Not quite the same as in the original sense but in the sense that reasonably speaking, everyone "matters" since they also exists, and thus everything that we consider right must also apply to them. We also have a duty to this because this is what we came up with our reason and it is "right". We can only conceive of we and the truth via our reason and so to deny this duty is to deny reason itself whcih would make "you" a slave to your own desires and emotions. This is where Platonic virtue comes in. Reason must have control over desires and emotions. This is where Aristotlean virtue comes in. We must develop virtue within ourself and one of the reason is that since we are rational beings to develop virtue is to be in accordance with our reason, and thus to be in accordance with the truth and with ourselves. So this is what is called "fluorishing" and this in turn would make a person happy in a way. Anyways I'll finish this later, but you see where I'm getting at.
I do think that I can make a philosophy out of this. I just need more people to see this.