first deal please help

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i found a deal the house is 5/3 and its in a nice neighborhood. he wats 180k for it and i went on zillow the house is worth about 260k and it sounds like great deal the thing is i dont have much money so i want to wholesale it and closing cost will be about 4-6k and i dont have that money. What is the best thing to do here assing it? or double close? and have the next buyer pay more? so i can afford to do a double closing? please help. plus with assigning do i need a specific cotract for that? or a regular one works becasue i dont have anything on the one i have that says assign to or anything like that?
Please Help
Thank You
Alex