More building, and a realization: the provider pipes, while more convenient than chassi pipes + modules, have the small problem of taking the first item first, so I cannot use them with condensers. Thus, I will have to change it!
My project will be using MK1 chassi pipes (redstone-based) with a provider module (duh! >.<) for small EMC items, and MK2 (Iron-based) with both a provider and an itemsink module for the EMC expensive ones (diamonds and the like). Obviously, there will be a destination for "useless" items: either a furnace or a condenser.