Not built a four star but built a somethin extra and a lt40. The four star build looks much like the extra build (perhaps slightly easier). How long the build takes depends on alot of factors such as your ability and how much attention to detail you wil put in in other words build quality.

Im sure you could lock yourself in a room and speak to no one and come outtwo to three weeks later with a plane built and covered and even havegood quality if you have built a few before.

But relistically it takes me aboutthree to four months tobuild and cover and set up a plane, prob about 100 to 150 hours. This time also depends on the kityour building but siglazer cut kitslike the four star are apiece of cake tobuild. In the middle ofa hog bipe the now quality of wood in kit amazing as always.

Dont rush the build to get in the air though as thats when corners are cut and you will regret it later, kit building is about enjoying the build otherwise we would all buy arf's.