I saw all the possible add ons. I think the car will be very distinctive with the SS hood and no spoilers. Now a days I can't remember seeing a car without the cowl hood and spoilers. Seems every 69 is running them these days. I think the 14" wheels with the endura bumper, that car is going to be one of a kind, and I think it will send the message to enthusiasts "this is the way cars came back then". My car doesn't have console gauges, and I will never add them, so good for you.
I also think a neat touch would be to add some original dealer license frames to your car. If you don't know the dealer you can pay for that report that will be available pretty soon. A dealer sticker in the back window or a local race track decal in one of the quarter windows would be a nice touch, and an easy adder. If you wanted to add traction bars or anything else, I would just do it a piece at a time after you have the car all together, because each change will change the look of the car yet again.
Just my 2 cents
(your car is going to look very unique, can't wait to see the finished product)