We recently passed on a unit that had no NADA. Be careful. Apparently there are some units that aren't in there for various reasons. If you're paying cash, you can buy it but if you think you may want to trade or re-sell you may have issues. The NADA is my best resource for determining value. Also, when you put in the things it has, keep in mind the "package" you choose for the value already includes the items in the package ~ no need to list them twice. Some dealers use wholesale, others use low retail.
Coachmen had some bumps along the way. We were not impressed with them for the longest time; apparently when they were sold out to forest river, things began to change. We have been looking at the Freedom Express, Liberty Edition, 50th Anniversay Package and are quite impressed with it. Our RV repairman was very complimentary on Coachmen ~ found them easy to work on.
Having said all that, I don't have any specific info on the model you stated. Keep doing your research ~ you won't regret that