Acoustic Research AR 3a and related electronics

I've been a forum reader for some time, but this only my second post. I may not even be in the right topic area with this.
When moving several years ago I found an old system in the back of a storage closet I had kept (for some sentimental reason) and had long forgotten about. It found its way into another closet in the new house, but now the wife says its time for it to move on. I'll be looking to sell soon; I just need to discern wether to sell 'as is' or get it all checked out and restored first. 

The speakers are AR 3a in cherry wood. Also found was an AR receiver and a Nakamichi 700 cassette deck.  All purchased in 1973 and hasn't been used in at least 35 years.

I know the speaker controls on the back are not working, and I haven't even pulled the electronics out to plug them in.  Who in the Houston area would be best to check this stuff out? (In researching on this forum I discovered a thread from 10 years ago mentioning a gentleman in Pennsylvania, Bill Legall, to be 'the' speaker restorer... that sounds like a significant shipping bill.)

I would assume most collector/tinkerers would advise to sell as is and for practically nothing.  I just need to see if there is value in restoring first.

Any advice would be appreciated.