I'm sure even if they had an outside financing company the result would not be materially different. No financing company or park for that matter is going to commit to a contract that provides full payment to the contracter before the job is completed. The format would most likely be similar to a construction loan, where only the amount necessary for construction is forwarded and the remainder is witheld until permits of occupation, or in this case operation, as issued. Think alternatively about if you were to have a house built, you wouldn't give full payment until your house was completed. If you did the contracter has no incentive to finish the details or work out the bugs in the project.