Starting smaller and keeping costs down at first will make it easier to survive until you build a solid customer base. Main St sounds good but this size is a little off. You're going to lose some room storing equipment and an area for your hobby shop which needs to be considerable size to get dealer status from Horizon Hobby. I believe they wanted 25,000 dollars in inventory and sq footage requirements before they would cut a deal with us, but I was told that by the very shady business owner. Your also going to lose room for the drivers stand and space for pitting. Best you're looking at having left is maybe 45 by 70 for track area, and that's with everything really cramped together. Parking also always becomes an issue even if you have enough room because people end up arguing about which spots can and cannot be used during certain times of day. There's a lot to workout and it's going to take some time to get everything right and get along with neighbors