Two questions 1. How hard is it to turn a standard MK1 Panda into the 4x4 model? Asking this because they rare, according to one recent poster only 50 of them in country. 2. What is the best/easiest Diesel engine to drop into a MK1 Panda? Looking for something that I can fix myself, no part problems, and with a bit of modding going on so can get advice.