Find Minnesota Models or Black Hawk modes and use ANY Shur Start or Tanked new old skool engine and you will be pleased with the flight and performance...another is Skalliwag..AKA select hobbies may many different 1/2a designs that fly perfectly with most of the available ExModel engines or Cox International engines

Do Not forget Brodak or their .049s as well as Norvel and their .049 and .061 versions

To have fun and fly 1/2a either CL or RC is very easy these days..... much better then wehn I was 12 years old.....

Hobby king has a few convertible laser cut kits and good small engines also for cheap.... In fact I use most of their miniature stuff for 1/2a RC birds....be sure to look at the USA warehouses before ordering from Hong kong