Time to throw in towel

I have decided to either sell as is my D4 7U. I will either part out. I want $2000 for whole. I don’t know as yet what fair price is for issuable parts. The motor is not locked, turns. I have the dozer where you can see all internal part are good. The left final drive is the culprit. Reason for selling is l have found a 450 case dozer. I have had one before and can use without being stressed out. I can use now instead waiting for maybe a year to get the older dozer working. Thank all of you that have tried to help me. gwoods 270-970-8172, d4 7u 7u11300 do have parts book and operators manual original books

location and pictures would help sell faster.