So I had all my concerns answered from Raphael on his live video...
The mods will come with their predetermined button configuration...face plate can be removed and buttons changed and be available to order.
Weight is about 190g...45g heavier than the Neo, but he weighed the Ultem (Correction- Weighed the White), there might be a tad difference in weight vs the black/white delrin, I really don't know...
The white he showed looked really nice, outside of the black button...but the ones he had are the protos... maybe he will have a giveaway on the protos moving forward?