Why don't you search for this information. I know for fact there are thousands of threads and discussions on this considering how vague the description you are giving is. How long do you plan to keep it? How do you plan on driving it? Do you have a gas mileage expectation? Do you plan on modifying it? ETC. Nice DD is not specific enough. I nice DD for me would have to have at least 150hp, that kicks out most of the basic swaps you can do.
Technically, labor would not be free because your dad has to pay people to do it
I would honestly do some research if I were you...