Thats an OKO 30mm carb. It is sold through Carburetor Parts Warehouse (CPW), so they just decided to stick their logo on the bowl. lol. That carb will work well for the mods you have listed and will give you an increase in throttle response. It is basically a knock-off of the popular Keihin PWK 28mm carb with a bore 2mm larger than the Keihin.
This carb uses Keihin jets and is easy to tune. Also, it will fit into your stock engine-side intake boot with no mods. You will have to stretch out the airbox boot, but it can be done with a heat gun and a little patience and it will work.
With the mods you are running, I'd say start with a 45 pilot, 148 main, needle clipped in the center, and tune from there.