Buying first trailer/ advice for recent graduate

I agree with another response, the trailer you're looking at retails from $5,000 - 6,000. Don't add options from the list if it already comes as standard equipment.
Not knowing how it has been maintained will require a thorough inspection. Check the date on the tires; chances are they'll need replacing. Get the dealer to include a warranty by a reputable company that is accepted Nationwide. If something breaks
I think the $8200 is too high, but good luck.