In this situation you have to go simple tractor, then buy tools to attach it. The tractor cost is too much in these days, but latest Tractors can do good job for anything.
Have you seen a tractor is placing nurseries in the field automatically. I will load the video or place from YouTube.
Ok, Thanks for the help, ill go with the simple or latest Farm Machinery, but it costs too much. I suggest you to check some DIY tools for Tractors so that might help you in building a low cost Tractor.