the simplest tehcniques are the best…
Ice water hash is easy but messy. It will be a trial and error situation to locate which micron size is best for your strain’s trichomes (heads vary in size from strain to strain)… use atleast 4 bags or more, on your first run, to make sure you’re not loosing anything… U say 1/2lb of material., i would do a short run of an ounce or two to start with…once u dial your bags in, run the rest of it…
a dry-ice dry sift is super easy. you can place the resulting keif in parchament paper and into plastic wrap and then place it into your shoe and walk around… or place it inbetween books and weights, or cinder blocks. …in lieu of a hydraulic press, of course…
the other super easy way is to make it into Oil, (aka RSO, phenoix tears etc). you can use ethanol, alchohal, or another liquid solvent. Just like with other solvent extractions such as butane/propane/co2, it only takes seconds of contact to strip the oils… Pour yur solvent over yur trim and then pour off the liquid off into another container. Then pour the run-off over the weed again. then pour that liquid through a coffee filter…they avegrae 20microns, which is enough to stop pet and human hair from entering your oil)… and into a crock pot. low setting, well ventilated… in 24hrs or so, you’ll have oil…
This can be done without heat, and done on small scale, u can place a few grams of bud into a section of panty hose (making a tea bag) set it in a coffee cup with everclear. after some time (few minutes or few hours or overnight) remove the weed tea bag and allow the achohal to evaporate.