That looks like a nice trailer... though I have to say I'm not feeling the pencil sharpener.
I looked through the pictures and was thinking that $7k-$8k might be a good starting point, not realizing you'd said there may be a problem with the refrigerator. I was going to look through the classifieds and see if I was in the ballpark, and I saw your ad for it for $7750.
The refrigerator you describe is quite standard for RVs. See if you can get someone who has some experience with them to see if they can get it to light and show you how it works, they're a little strange if you've never been around them.
From your description, and for what my opinion is worth, I think you're priced in the right range. The challenge that you'll face is that there's a smaller smaller group of people who are into "squarestreams" than the rounded metal trailers. Be realistic in your negotiations, and don't be discouraged if you don't have 100 offers this weekend, but from the look of it someone who's more interested in having a nice travel trailer than in "owning an icon" will see value in your Argosy.
Take some better pictures of the bedroom area. See if you can get the refrigerator working. If you can't, you can expect to give up a grand or so to buyers who realize that they cost 1200-1500 to replace. The pics look pretty good, so I suggest you put them on a sharing site like Photobucket or Picasaweb and put a link in the ad so it's easy for people to get to full-size shots.
Best of luck!