RE: How the heck do I build this thing?
Now that Redback mentioned radio placement, you'll notice this plane has an access panel in the tail of the fueslage. I actually put my battery and receiver back there to balance mine out. As I said, I put a .25 size engine in mine, so depending on the power system you choose, you may or may not want to consider putting the RX & batt back there.
I also put on larger diameter wheels than what came with the ARF to roll better on grass airfields. I used narrow, light-weight plastic wheels that Maxx Products makes for electric planes.