Just want to give some tough feedback here:
I am not sure how successful this set will be. There's a lot of GMK beige options right now, and people that really want Handarbeige had the option to purchase it recently from another manufacturer.
I love beige. I also love handarbeit, but this set is more niche than both of those. The contrast on certain keys (enter) is almost illegible.
I do think there's a market for this set, but it is a strange time to run a GMK groupbuy. I am simply concerned this set will be challenging to get across the finish line, and it will be a repeat of the first attempt.
My personal suggest would be to wait until GMK is really pumping again, wait times go down, and GB sales go up to try to run this.
Regardless, I do want this set to succeed (really true for any set), and I wish you luck.