2014 transit high roof non runner

Unfortunately this van is currently a non-runner and I need to sell it and get it out of my garden. It was a camper project that I did start but, like many people in life, things just got in the way. Life got in the way and I cannot get the time to get to it. It's been sitting in my garden for a year now and was driving perfectly but now it will not crank. I just need to get rid of this. I've not had time to finish it. As you can see in the photos, I have put a floor in it and put some insulation in it but that's as far as we got. It's very much a good potential starting camper project for someone. It's a high roof, it's 2014, it's got 140,000 miles, and it drives well but for one reason or another it's currently not starting. I don't have time or money to give it to a mechanic You can message me and we can talk but I don't have any answers as to what's wrong with the van. I just don't have time or patience to deal with it so there's no point in asking me what it needs. I do not know. Sorry