I am not familiar with the frame/set up - if you could post a picture of the set up (even if it's not yours, maybe just a brochure photo)? Then maybe we can help with options/ideas.
Just off the top.... is it possible to mount the laser to the side of the carriage? That's where mine mounts. The pantograph is to set on the table and you work from the back of the machine to quilt via laser/pantograph.
If you need a picture of that set up, please just private message me and I will send you one. (I don't look at the QB everyday and might not see that you want a photo).