In reality the 88 Circus and 88 Miller were the same boat just painted differently. The miller boat was in a crash that year and I have a photo of the miller boat with the circus engine cowling and a partial pink wing. It almost looks like a photo shop job really strange.
The most noticable difference between the real boat and Dumas kit is the back of the cowl where the exhaust tube exits. When you compare the two you'll see the difference.
You'll notice the Dumas boat is much narrower than most models of that era. It'l take more horsepower to push that boat than most but with the right prop it will go!
Add cup to a 457 and attach it to a greeny, it'll scoot right along.
gh