What should I ask for my 2015 EX

As the title implies, I am moving and need to downsize. I have a northshore blue 2015 EX with CVT and 143k miles and clazzio quilted seat covers. It runs and drives great. We'll maintained, just a few paint blemishes from commuting. Replaced the 12v battery and brakes in the last year. Carvana offered $3k, but dealerships are selling them around $9k. What would be a reasonable asking price for private sale?