I don't know how far cooperation of this sort among artists can go, or how many different types of cooperation can be successful, but this does seem to be a good time to find out. Multiple publications under single covers should also be pursued further. If you bind two or more books in the same covers, you can reduce the cost of text printing a bit, and cut the costs of binding and cover printing drastically. There's no reason why magazine publishers couldn't do the same thing. Even magazine publishers who wanted to keep their own wraps could offer multiple subscriptions at reduced rates, thus decreasing postage costs and increasing circulation.
Distribution constitutes the largest problem in alternative publication now, as it has for decades.
In Latin America and Eastern Europe, a large underground political network facilitates distribution of alternative publications. Such networks are frail in the U.S. at present, and many writers would probably not want to go through them for political or aesthetic reasons even if they were strong. However, the international mail art network, a network that interfaces with underground cabals throughout the world, is open and accessible to anyone who wishes to participate. The economy of this network is based largely on barter instead of cash. Alternative publishers do a lot of book swapping, and this could certainly be increased and extended.