Atv Lost Title

Bill atv trade in cars for sale, etc..?
I have a mustang 92 projects with a clear TN title I of the exchanges in type 97 atv honda 300ex lady who bought said was lost from the title, but has no problem with giving me a bill of sale on it, how I have to out and what should I put it where you ask for the price of "sale", said he would get his number in the morning to contact to her about how to apply for a title lost in the atv
To assess the value of the mustang, and writing amount.If the car is then further can low ball the price for tax purposes.
Jerry Goldsmith The Final Conflict Suite #2