The Hawk Sport comes in "modules" It is VERY easy to assemble. The pushrods are all premade to correct lengths if you are using standard servos too. The hardest part is... attaching the fan to the engine. You have to be careful to not put excess force on the fan blades. use a strap wrench to hold the fan while tightening the bolt on the crankshaft. (have the strap on the main casting...not on the fan blades)

There is enough assembly work for you to see how everything works... but you don't have the mass of little parts and screws of a kit that has no pre-assembly done.