Certainly not a bad build, as the Han RH/Boba Merc combo is just plain nasty. Be sure that if you do bring in MTB+Gonk that you try to work things where the Gonk can give Boba a 3rd attack. That's always fun.
I personally like to squeeze Garm into these kinds of builds, to allow Boba to Intuition out, takes his shots, and then move back into hiding, but that's personal preference I guess. Boba Merc is just a bit on the fragile side, and if he has to stick his neck out there the whole round, he'll usually get pounded a little bit.
You also might look at dropping 5 Ugos for the Ugo Boss, and then bring in MTB and 4 Ugos with Lobot instead. You'd still have 9 base activations, which is pretty decent.
2-1B is an interesting choice here, and I'm not saying it's a wrong choice, but it's definitely different. I'd probably rather have more Ugos or something instead. In fact, you could drop 2-1B for the Ugo Boss, and then change an Ugo to a Caamasi Noble if you wanted to.