If you're not in much of a hurry I would ask $25,000 to start.

These cars are really starting to appreciate in value, especially a convertible with low miles.

Spring is also the best time to sell, but you'll need to be patient in order for the right person to come along. (Advertise it nationally)

In 5 years, I'll wager a 25,000 or less mile, pristine condition SRT roadster will sell at Mecum or Barrett-Jackson north of $40,000

Shame to sell it now