How expensie is it generally to get a good used rotary? I am asking because sometimes I see cars for sale with no engine or transmission for like a hundred bucks or so, would it be worth it to buy it and find a drivetrain to put in?

 

I have seen used engines between 200-800 dollars, If you wanted to get e rebuild it would run between 1400.00 - 2400.00 $. Usually the higher you go the better the quality, (But Not Always).