Agree with Spanky, I was having trouble with my starter when I first got my truck on the road, at least, thats what I thought it was. I posted on here and got educated on battery cables. Changed to 2/0 and have not had any problems since. In fact, I started my truck the first time since Nov on Saturday and it fired right up, 1st try.
Would love to see some pictures of your truck. What are your plans for it beyond getting it running? Oh and welcome by the way.