Blue Maple wrote:
I can provide some guidance on this if you want it...
Sure, I'm open to suggestions!
Don´t care too much about the Nadir. If you want to get rid of your tripod-legs:
Drag your equirectangular image to the KRPano droplet "convert sphere to cube". You get 6 cubefaces. Take the "down" face and retouch the tripod legs as well as the Nadir hole by using the clone-tool in Photoshop of familiar app. That should take you no more than about five minutes in your case.
After having retouched the Nadir drag all teh six cubefaces in one to the droplet "convert cube to sphere" - you get your equirectangular image with Nadir.
I ´m going this way in almost all of my projects like this one: http://360impressions.de/WandelHalle/
PS: having a license for APG you have a license for KRPano also.