I'm sorry to hear about the bad news, as I've been looking forward to pimp my keyboard up!
This is by far the best looking set out there. However, i understand your concerns and situation and I fully support it. Thanks for investing your time and money into this.
If there is a way to redo the group buy for the same date, keeping the same delivery time but re-do'ing orders, i'm sure that most of us would be up for it!