2000 3124KB...is this a good/fair deal?

My wife and I have just recently decided that this year we will start doing some traveling and camping. We will be using her 2004 Toyota 4-Runner Limited 4x4 to pull the TT. I came across the TM product and it looks like it fits the bill due to light weight and size.

I've come across a 2000 3124KB in average to above average condition...functional but not many bells a whistles. So far all looks clean and well maintained. They are asking $11,000 for it. Is this fair? The NADA says closer to $9000, but the TM's seem hard to find used--and I don't want to let one slip by and then go into the summer without.

Also, My first choice probably would have been the 2720, or 3023...but I figure the extra size can't hurt, and I have a place to keep it and the Toyota should pull it ok. (the manual says 5000lb or 7000lb with a weight distribution hitch) Any other thoughts???????

Also, anything other than the usual to watch out for with this model???

Thanks in advance!