Chuck,

the A45 plans show the two YS 45 installations - one for FR and one for FS. The FR uses the canted side RE Hatori header to avoid the nose gear. The FS is mounted at 90 degrees with another custom Hatori header which angles into the fuse forward of the FW. It is essentially a standard SE header except it has a slight drop so that when the engine is mounted with the correct right thrust, the header enters the fuse beside the nose gear nicely.

If you have an FR I think it's the cleaner approach - probably inline with your preferences (based on your Calypso build).

David.