1st deal, is this good or not

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I'm new to all this and am working on my first deal and need some advice. I found a vacant property with fire damage. The property sits on a 1 acre lot and is surrounded by custom homes that are $500,000 or higher. Approximately 35% of the home was destroyed from the fire. I'm estimated repairs at $100,000 with an ARV of $500,000. Is the fire damage too severe to try and wholesale the deal to a rehabber? I'm trying to get this property under contract for $240,000.

If you think I should proceed with this deal, should I do a double closing? I'm a little confused on the process and would like some clarification if possible. Do I execute a purcahse contract with the seller and then execute a new purchase contract with my buyer for the higher amount? I already found a title company that will accomodate me on the double closing. I really believe I can net more than $10,000 from this deal given the spread. I would prefer not to do an assignment because I wouldn't want to buyers to see my price. Any thoughts?