Don,
You may not be crazy asking this price. Don't forget this is an international forum. You are asking $5000 CDN which is about $4400 American this week.
Those of us that know what the parts are worth that you have replaced - see the value in it. The new frame,
axle,
brakes,
tires and wiring are worth at least half the value and have considerably extended the lifespan of the trailer. Any body seeing a Trill in reasonable condition for $2500 Canadian would jump all over it.