I posted in the VE.A discussion thread, but basically I mentioned that:
In order to keep this keyboard "rare", "special", whatever you want to call it, and still have Vermillion dedicate his own time to add his personal touch, perhaps it might be a good idea to do GB in rounds.
Instead of taking ~100 orders for one round, maybe you can consider doing 30-50~ each round, and once you are done and happy with that, slowly start another round! This way hopefully it will still be a fun hobby for you, and you won't be overworked.
Another benefit for buyers is that, if we have a lower QTY each time, this just means Vermillion will be able to spend more time QC, because with a larger QTY, you always have to worry about more QC issues, and time is a finite resource.