Hi Franceso and welcome to the group. Glad to have another '71 original owner in the mix. To answer your questions, which I've numbered above.... 1. Possibly some of each, generally owners responding based on their experiences. 2. It will range from VERY to HARDLY. Your job is to evaluate and use what you can. 3. Possibly, but probably not. You can send a personal message through the forum for direct contact. 4. Responses often come in minutes. But, days, weeks, and months are not unusual. 5. Discounts on parts, member ads, FREE help and emotional support, and the ability to tap into thousands of years of actual owners's Z experiences. What could be better? Dennis