thinking of saleing my 70 red /red/ red duster

i need some opionon about saleing my red duster i ve own the car since nov 17 1989, , i ve had a lot of fun with it the last 2 years way more expected of awards with it but i found a really special car needs restore but its so rare its envy of the muscle car world it will need to be restore same owner since new . i need to raise money for it wife says no dont sale your cars , i ve done try to trade my srt8 challenger, and cash but no he saids i want money ... whats my duster worth you guys think any real offers . it is all number matching and i ve got all the stock parts for it fender tag built sheet, every nut and bolt is done on it , i will sale any of my cars right now to try and get the whole cash for the other car ........... its a orginal 426 one one owner