One has to agree with the idea of a DIY project being a sound idea.
But, it is easy for an experienced crafts person to see how it could be done, an overlook the possibility that no one in the group has access to the big picture.
I think it might well be necessary for someone in the group to get some experience, or call on someone who has it.
I still like very much the idea of a group effort, mention has been made of the savings in time by doing all the folding and sewing etc.
But I still think, (having reached the end of my 10 cents worth.) that someone in the group should have experience of binding, even it is only at a fairly rudimentary level.
Shivering by the pool in France