Can anyone tell me what a DDH is worth.  it no longer has the Hercules engine in it although the current owner does have it, but he said that it has a cracked block.  The machine supposedly runs with a 300-6cylinder ford transplant.  I was not able to hear it run.  The guy said that he believes that there is dirt or something in the gas and that it needs tuned up.  Undercarriage looks to be in fair conditon, but I am uncertain of the condition of the transmission.  I always wanted to take on a crawler as a project as well as have to use, but can not afford to end up with a total basket case.  What do you think?