The hollow door and ceiling tile on top is what I use. Just make sure the door is flat free of warps. I build at least 4 Lazy Aces. The first was powered by a K&B 60, last plane was powered with a G-26 . What like most about the Ace was you could modify it a little to look like other aircraft. Here is the last one I built. These are old pictures that I scanned. Will you be doing a construction thread of your build? You should we would like to follow your construction.
Rich
