Wascally Wabbit Ears

Finally got my hands on a sweet "bunny ears" type airbox for my mito! Now comes the search for a carb. Do I go with the larger TM35 Mikuni or just upgrade to the 28mm RD carb? The 28 seems like the more logical choice since the throttle cable I already have on the bike will work easing installation, not to mention the fact I have a whole lot of DelOrto jets an bits for the 28. The race never ends......