Many people may disagree with me, if driving it a 1,000 miles a year, I would buy something with 20-30K miles. That way you won't pay huge dollars and will not feel guilty about driving the car.
I have been there before, the last car was a 2600 mile 90 Saleen that was in every Saleen related publication you can think of and won all sorts of MCA awards. I wound up selling it because it was a trophy that was in the garage and only went a couple miles once a month.
The value of this GNX is the low mileage and adding a 1,000 miles a year may not seem like much, but own it 7-10 years and now you have 10-15K miles on the car, which will only decrease the value.