Welcome - you have got yourself a great boat. I wonder if you have one of the E35s I used to see in San Diego Bay, as there were a few in need of some work. The summer wind there is regular as clockwork - you can count on a breeze around noon, and being becalmed around sunset.
When it comes to the TLC, there are a number of contributors here who have done extensive work to a 1970s E35, so the archives are rich, and a lot of advice is available.
As for sailing away, there are not many places to go for a weekend from San Diego, other than Mission Bay, but the Baja coast is completely unspoiled when you get far enough south of the border if you can take a longer trip. If you make it to Cape Horn, I think you will be the first, so make notes and take pictures...
Gareth
Freyja E35 #241 1972