who to have rebuild my 800 motor?

My 2009 renegade starting ticking louder than it should on my last ride. After looking at the dipstick I found the oil was below where it should be. The motor has around 3000 miles on it and I dont baby it baby it when I ride it. Who do I get to rebuild my motor and what is it going to cost? Would I have any luck selling it as is?