Dutchmen is a mid-level brand that holds up nicely if taken care of. The price seems good if everything is in good shape.
Has the trailer been stored under a cover, such as a barn or shed? 10 years of Austin sun will make a rubber roof pretty crispy, so be sure to check out the roof. Look for cracks or gaps in the rubber, and also for recently repaired cracks, huge runs of sealant and so forth. Check the interior carefully for signs of leaks.
Also, if it has not been used much make sure the bearing and trailer brakes are working.
That thing is long but your truck will pull it just fine. Get a weight-distributing, sway-controlling hitch (if it doesn't already come with one) like Reese Dual-Cam or Equal-i-zer and it will be fine. I've got the Dual-cam on my rig and it is awesome.
Good luck. Hope to meet you camping some day
