I've got one for sale
I've got one from a 67 Tradewind that i believe will fit the 65, but you'll need to verify that. Was going to garage sale for $100.
Has knob, screen door, hinge etc. Has hairline crack near hinge so you'd need to have that welded. Also, there's a process for shaping these to your trailer frame door before welding the door itself so that it matches your curves. I think it would be pricey to box and ship to WA, but if you're floating through the Dallas Fort Worth area & can pick it up drop me a line.
I don't have a key for the door knob so you'd need to get one made.
"would you rather have a mansion full of money or a trailer full of love?"