Take a look at WowPlanes foam bomber models. Foam and molded plastic construction, fair amount of spackling, sealing and finishing needed for very scale-like models. Intro kit price on 60" B-25 is $99. There is a build thread on Scale Electric Planes forum, go to the end to see some nicely finished examples. These appear state of the art for electric power , fly very well and are light for their size. Kieth Sparks collaborated in producing these kits. Judge for yourself.