Arriving in the area in your trusty legan, make your way to the garbage station to get rid of all the old junk. There are multiple routes that you can take.
You need to bring this crate full of snacks to the radio tower. There's also a trailer full of equipment you need to get out of the docks area. Careful when going up the hill, there's steep edges.
This tool will delete cache folders of old versions. This doesn't impact the current version and should free up some disk space. The process can take a few minutes.