Even if it was built by someone 100% reliable, ten yrs is a very long time for an engine to sit, especially if it's never been fired. Unfortunately love for that gen Cobra has yet to catch on, ones that do bring good money are typically super low mileage virgins. I think it might be a bit of a tough sell but if nice enough someone can see what it could be, think it's in the 10k max range. Finished as a runner, agree with your number.
Heck of a nice build for the right guy.
If it comes up for sale, yes please on let me know.