I know this may be a bit late but I found some links to libraries of
photographs for various engine mounts for the CH-801. In many of them you
can clearly see the top center firewall attach.
http://www.zenithair.com/stolch801/construction/engine/lyc-o360/
http://www.zenithair.com/stolch801/construction/engine/
http://www.zenair.com/801/photo-manuals/fwd-fuse-1/
http://www.zenair.com/801/photo-manuals/fwd-fuse-2/
http://www.zenair.com/801/photo-manuals/fwd-fuse-3/


C. Smith

That is a fabulous set of how to's. Even a monkey could build that
airplane :)