Here's how I see Provolution's candidacy for ambassador to Merlot:
Pro's
Provolution has a lot of experience with the people on Merlot, namely Indiansmoke. This would obviously be vital for our dealings with them, and dealings with other players regarding them, and we could maybe even use any connections he has to meddle with their domestic affairs.
Cons
It seems Provolution is not very well liked on Merlot, especially by their King. This could hamper diplomatic relations with them quite a bit. Even if we don't want them as allies, it is important to keep all of our options open.
As mentioned by cavscout, Provolution seems to have something against these guys (as evidenced in the "vinegar" thread). This could put us on a predetermined path of opposing Merlot and closing down options that should not be closed. Whether Provolution's judgment of Merlot's character is correct or not, we should not close down options because of that, we do not want to limit our options; instead we must take Provo's knowledge to help us make informed decisions, whether or not that means going against Merlot.
I'm going to selfishly suggest myself as ambassador

, because a) I want to be an ambassador, and b) Team Merlot doesn't know me. At all. They won't have any preconceived emotions towards me, and I can make a good impression on them, even if we decide we want to go all out war on them. Provo will of course be the main driving force behind our dealings with them, but they'll see my name at the end of the letters we send.
As for actual dealings with Merlot, I think it would be in our interest to facilitate a regime change somehow in the future, and that would also be a lot of fun. Already on "The Mystery" thread we've seen some dissent in Merlot's ranks. What are your connections like in Merlot, Provo?
It is fairly likely Merlot is not actually CDZ's neighbour, since we met them by boat. This would be good for us since CDZ seemed to take Merlot's side in the thread.