I like this method (I have to try it one day). You can print all the markings on a tissue paper and glue it on the foam. There are plenty of planes' descriptions made in a such way in this forum.
<<when done, cut the peices out and assemble the plane. et voila:>>
That is another story : You have to find proper balancing, proper motor and prop, proper gear, achieve a low wing loading and a good flight time. Then, trim the plane, et voila
You have a nice model anyway. What is the weight of the airframe ?