After 4 weeks they still only have 101 backers of the full set, and still about 25% of the way to their goal total dollar amount.... and only 3 weeks left to go.

They have announced an "unlock", of a third bonus piece - Wreckgar as a replacement Knight.
I didn't realise or notice before that there were going to be any bonus unlocked items, but the thing that I find strange is that it is NOT a bonus after they reach its minimum target amount... it is a bonus on the way to the target amount, which means that everyone buying the full set will get it anyway, along with the other two bonus pieces.

They need us$300,000 for the project to go ahead, but this bonus unlock is when they reach us$100,000... so I wonder if it was originally planned to be a bonus unlock after they reached us$300,000, but had to offer it as an added incentive right now, because they are struggling to get to a third of the way.