Single product list but 10 vendors

Ok here is a question.

I need to have 1 set of 60 products which is assigned to say the master store call it A

I need to add 10 vendors that will all sell the same products on their own pages, they will not add any products to the store.

Question. If i put on 60 products how can i get all 10 vendors to draw off that 1 set of products rarther than cloning the 60 for each vendor.

If i have to cloan a set for each vendor i am going to end up with in effect 600 products i.e. each set would be duplicated with each one allocated to each store.

The documentation is very poor in this respect so any help here, but those who have done this or the programmers would be welcomed.