The overhang is adequate, as far as I know.....I've done quite a few of these, and those numbers work...some require a good bit of trimming but just follow the diagrams and you'll be fine!

PS yours will ship as soon as I get the new foam and get it cut, one day this week. ALL of the electric kits are getting the new foam which will shave an additional few ounces. This is stuff I couldn't get until last week. So I ordered it, they cut it up and now I have to get the trailer and go pick it up and cut it. Foam foam foam!

At any rate, I'll get down hard and heavy on this thread pretty soon, but I have to get these kits all shipped before I have any real time....

-Mike