Welcome to country living! Build your dream home on this blank canvas in the country! With 3.6 acres of land in an area zoned residential 2, you have a good amount of space to work with and given that it allows duplexes, you could also consider several options.
You could construct multiple duplex units on the land, maximizing its use while still adhering to zoning regulations. If permitted by local regulations, you might consider subdividing the land into smaller lots. This could potentially increase the number of units you can build and may provide more flexibility in terms of design and layout. R-2 regulations are available as well as a survey.