Thats why he is in a win / win situation.
If it goes uncast ( which sadly it will not) and it recievs rave reviews , not only will he have made money AND secured himself (and his ego ) more status in the prop community but you can guarantee the next batch will cost double this first batch.
When it gets recast he will just say " this is why etc etc etc...." and wil forever more have a reason not to share and to berate the likes of the 501st and their stance on recasting.
Sadly I fear when its recast it will be someone in or close to the 501st that does it, much as it pains me to say it.