I'm looking for a reliable gardener to remove several old tree stumps and surface roots from my small backyard. The work involves grinding or pulling up stumps, treating exposed roots, and clearing debris. It would be great if you have a stump grinder or appropriate tools. Please provide a rough estimate of time and any preparation I should do (e.g., marking areas to avoid). The goal is to have a clean, level area ready for planting or lawn: minimal disruption, safety-first approach, and tidy disposal of the waste.