Well the martins are high IQ, low usage, guys with good ball handling and solid (albeit it not great defense) and great shooting. Will cost a fair bit less than Monk and defend and facilitate far better than him.
With respect to the Kennard deal, they will likely need to move off him in order to sign Wall. Harkless would likely be waived by them and this gives them money and a prompt contributor who fits what they were missing after the departure of Montrezl Harrel (subing Jr Uh Oh for Uh Oh). Kennard has spend time between 2 and 3 his entire career. I think as a backup to Barnes, he is far better than any player we have had since barnes has been here. Frankly, he is better at SF than any SF in the last 10 years for the kings not named barnes. And he can slot into the starting 2 guard spot (and martins can slot into backup 3 spot) very easily if VO goes lame on us again. He would give up some on defense but not nearly as much as Monk does and his offense is perfect next to fox and mitchell. He also, in my opinion is better tha Huerter overall and this way gives this team more balance than Barnes and Holmes and a FRP for Collins and Huerter.
As for your point on Bamba, yeah i generally agree with you but no-one heard the Hawks swooping in to steal Murray from the suitors either so who knows. Most likely he won't get a better offer than $10-12M per year. He also likely won't have nearly the playing time that he would get in the variety. Of looks but as for whether it happens or not, i agree, its a bit of a pipe dream (an Armchair GM exercise if you will).
Hartenstein would be acceptable as well, and short of that, resigning Jones on a $2-3M/yr deal.