If you can get everything done in 3 days I think it sounds like a great opportunity to do exactly what you hope to do, go full time for yourself. Your dad’s established reputation is valuable, and it looks like a natural step for his son to take over. I second SIRKY, he probably kept his best accounts and may be willing to “sell” for you to get some of the “downsized” properties back. I also think jsroda gave you some great advice, Craigslist can a great way to get equipment. There is a good chance you could find a whole set up at a great price. It would be great if you could make it through the year with your current truck, but watch the repairs and down time. If it is spending 2 or 3 days a month in the shop, it may be worth borrowing for a decent used truck.