I see your post shows the rotisserie.... I was too quick on the trigger...
Looks really good - and am thrilled to see the progress! It always reinvigorates "the builder" to get something "done".
Was thinking about your "speaker" issue.... you have cut off wheels - and a welder... you could (if you have the room) relocate the oval speaker "holes" over a bit to make some clearance? Or turn them on an angle?