Do you have Insurance for any/all loss of your tractor?
You can buy a one year tractor loss policy from Inland Marine, through your local insurance agent.
I picked up my (used- $32K) L48 TLB with my own trailer, but was concerned about an accident loss while transporting nearly 400 miles, so bought a 1 year ($500) Inland Marine policy.
You also might check with the issuer of your auto or homeowner policy.
Either may be able to offer trailer content loss coverage.
I would definitely recommend specific tractor loss (piece of mind) coverage for an 800 mile tow!