While im not involved in this project what I say really dont have to count but I would suggest that each person build their parts that they agreed to build, once the parts are finished they move on along the list of people who were to do the next step on that part and so on till each piece is completed, as for molding, I would only mold the parts that are a universal fit meaning they can fit right or left, this will speed up the whole build process, after the parts are molded and cast, the original mold can be offered to the original builder or destroyed, by doing it this way, it will cut down the cost of this whole project, speed up the project because you've cut out the molding casting process, and it will keep everything fair and after the project everybody will be happy with the results with no feelings of being suckered into building something that someone else now owns casting rights to, also when the person who wins the auction suit gets it in their hands they will own the parts actually hand built from each builder who participated in the project, this is my 2 cents and you guys can take what ever route you like, I really want to see this project get completed
Also some quick tips, You may want to figure out the scale for the suit, like base it off a person that is 5'9" to 6' this way when all the parts are together you will have parts that look proportional with each other
And for silicone to mold the parts that are universal fit take donations for that as silicone and casting resin is not cheap
Hope to see this whole thing come together, sorry that I jumped in but I just wanted to avoid confusion later on down the road and see a project like this become a possible mess, I think its good for the members of this forum to come together and do a project like this, but it does need some sort of plan and organization