I agree with Greg… I would either offer the seller a lease with an option to buy or find a money partner that will either loan you the money at a fixed interest rate and/or take a piece of the deal. With your skill and expertise repairing homes you can do extremely well. There is a lot of money right now in the marketplace with both private and commercial lenders.
If it is a good deal you will find the money or a way to make the deal work. I promise!