Resist the urge to sell and hang on to it ! My youngest is about to leave the nest this September: I've had three through college, two are now married (daughter's wedding is just now getting paid off), youngest son gets hitched in September, 1st grandchild was born June 23rd., and on it goes. I've fielded many offers, tempted to sell one or more, but I could never face the fact that when and if they sell, I could never replace them. Too many stories from folks over the years about seller's remorse when they let one go out the driveway. I have only sold one of my cars since '73, a '70 LS5 SS, but that was because my best friend was selling his '68 BRG Z that I had helped him buy, and build up - I couldn't let it walk. Bad feeling to watch the trailer leave the house after owning the Chevelle 19 years, only I had one to replace it, which helped somewhat. Borrow money, get a second mortgage, sell something else to retain it, but I feel it will leave a 3 foot hole in you coming out the other side.
Just my opinion -
Steve