Sounds impractical from the standpoint of making your money back. Also the idea of having an equipment free-for-all is terrible. Equipment can only be used by one person/team/company at a time, so you need to make sure there's a reasonable economy to allocate the resources fairly according to supply/demand. You could maybe set it up so that the equipment is rented at some rates, but all tenants get a certain amount of free equipment rental per month.