If the refrigerator works (the rest of the appliances too, but refrigerator is most important) and there is absolutely NO water damage/soft spots anywhere in it, then yeah, it's worth that. Otherwise, start deducting.
As a general rule, when trailers hit 20 years old, they pretty much are worth the same from there on out. A good, clean trailer with no water damage and everything working is worth generally $2500, then maybe go up slightly if condition warrants. Broken refrigerator or an electric dorm type replacement brings it down to $1500-2000. Minor water damage $1000-1500. Major water damage and unknown appliances- $200-$1000, again depending on overall condition.
That's a 1991 Solaris T-2250 or T-2251, depending on if it has the dinette on the side or up front.
2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9467.8 (as of 5/26/19)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR