PLEASE SHOW ALL WORK (not on excel!) thanks so much

Crazy Cliff's Car Coral crushes competition causing college customers considerable consternation. Crazy Cliff's has no debt and considering opening a new dealership - Crazier Cliff's. Crazy Cliff requires that all new projects have a return on equity of 18%. The new dealership is expected to increase net income by $200,000 per year over the projects 10-year life. The new dealership will be placed on land Crazy Cliff purchased for $400,000 2 years ago; the land could be sold today for $450,000. Crazy Cliff plans on operating the dealership out of a brand-new double-wide that can be purchased for $80,000 and will be depreciated to zero over 10 years. The double-wide has no salvage value and the land is expected to be sold for $500,000. Assume a tax rate of 25%. What are the IRR and payback period of the project? Should the project be accepted?