Well for starters, you shouldn't need to extrude the hop cones into pellets unless you invest in some industrial processing equipment. But what I did last year was manually pick cones off the bines (about an HR of work for 6 plants growing up a 1 story house), weighed altogether the wet weight, then dried in several batches on a food dehydrator down to about 10% moisture - which took only a couple hours on the dehydrator. As your harvest gets larger you may need to employ additional dehydrators or the method that entails drying on window/door screens payed horizontally in the garage.