gpx files have all the info with logs, loc files just have the location & title etc.
The easiest way is to use PQs but you can get loc files as a basic member direct from the search pages.
I personally think the best way to go is to use the PQs, import them all into GSAK then export the whole lot as a gpx file, zip it up, transfer to PPC then get cachemate to read them.