Can you post the DSO number. I am interested in any and all 6 digit codes.
I think you can make some tasteful mods that will enhance you driving experience without hot rodding it. I nice dual exhaust system would give you some sound. I think that the trumpet tips through the rear valance is one of the nicest looking exhaust treatments on any car! Certainly it would make it closer to a GT car, but easy to tell it is not. The paint and interior should remain stock.
Is it a two-tone interior? What is the exterior color again? Sorry I missed that.
Matching hump hugger console is great for carrying your coffee. Certainly a nice stereo would be great. Two items that a lot of people consider are disc brakes and a shoulder restraint system for safety. They have some very nice options for that if you feel the need. If you desire this, think about it from the start of the restoration.
The one mod that can really enhance your car if you go long distance is a newer automatic overdrive transmission (AOD). Is it an automatic? No one knows that the AOD is in there and can make freeway driving such a pleasure and reduce gas consumption a bit. But if your car has 2.79 rear end gears, it will cruise just fine.
I think a pivotal decision that can be done anytime is the tire and wheels. Stock or something more. If you go stock, then leave the car at the stock ride height. But if you choose to go aftermarket then you may want to plan from the beginning. A slightly lower stance makes all the difference IMO, but must be planned to not rub anywhere. Your choice here will kinda set the tone for the car. Stock or tasteful modified.
Now remember, I am the butcher king!! Modified all the way!! So take me as a non-stock guy! But I think you can personalize and enhance it without it being a hot rod.
Your rolling stock in my mind sets the tone for the rest of the car.
Rob