I would shorten up all of your fuel lines to begin with. If you can take the plane to a RC field, they should be glad to help you set this puppy up. Other than that you look like you know what you are doing. I don't like the fuel filler line . If I am correct it can cause you to flood your engine if you fill the tank to fast. Keep in mind I never used one.

I like ARF planes especially for a trainer. If you crash it at least you don't have to worry about all the time you spent putting the thing together. ARF planes are getting more and more expensive. Heres where I like the kit part of the hobby. Kits are a dime a dozen and cost the same to assemble them.