Normally you would need to add a lot more info and specifics but since you just want a quick round number, hope for $5,000 but expect closer to $4,000 maybe. So many questions....
2001 Trans Am Convertible Red w/ taupe top (A4)
2007 Ford Mustang GT/CS Convertible White w/ black top (5 speed)
1974 AMC Matador X Red (3 speed auto)