Thank you all for the help. Trailers are absurd around here: I can buy a brand new car hauler for $3100, yet all I see advertised is rusty crap for $2000. Don't understand it, but I do know a "Dog in a Manger" when I see one. Why anyone thinks a rusty, 20 year old trailer that hasn't moved in 2 years and probably needs an overhaul is worth 2/3 the cost of buying a brand new one today is beyond me.
Lucked out: called at 7:30 AM and reached the owner at a dealer: he sold us a 16 ft Big Tex, built in 2000, with dual axles, full brakes that they rebuilt to brand new specs, and a ramp - all for $1300. Perfect for our needs.