Davs hope outpost comes to mind but not sure that drops MEF
Context: Dav's Hope is an abandoned mining camp on planet A5 in system Hyades Sector DR-V C2-23 - it is a source of manufactured materials in 10 drop-points around the base (plus a "periscope" data point to scan for encoded materials). Finding it: With the new DSS mapping tools you no longer...
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you can find other outposts that drop them here, unfortunately the search dosent work properly unless your looking for systems they list
scan\collect form any of these outposts then logout to the main screen, rinse and repeat untill youve got what you need
if your getting killed to quickly then try equipping your ship with Point defence in the top slots and landing your ship closer to the outposts the point defence will shoot down any drones if theyre in range or lure them back. not sure this works the bases turrets though
also remember pips to SYS will boost your shields
the other option to collect MEF would be from missions or visit a materials trader and exchange what youve got for what you need