Dynaco FM-5 Tuner. Is it still worth the money to service and possibly upgrade??

I recently purchased a used Dynaco FM-5 tuner that was made as a kit. It looked clean and the dials spin with ease and no glitches. Waiting to get a Terk antenna to see if the unit needs realignment.

 I tried without any antenna and it was able to pick up a few stations( but with static and not clearly)  I am in the Los Angeles downtown section, but away from most tall building.  Don't want to drop a lot of money into a  vintage piece that may have seen its glory days. Thank you!!.