@John Warren - Thanks for the mention.
@Jennifer Stanovich - In regards to using an exchange property for personal use, it is often frowned upon by the IRS. You should have the intent to hold the replacement property for rental use, appreciation, or use in a trade or business. If you are planning on living in a portion of it, then you should not use your exchange funds for the primary portion of the asset.
It is recommended that before you engage in a Reverse Exchange that you, your CPA, your lender, contractor, anyone that is assisting you with the 1031, including your QI, have a phone call to discuss the transaction. That way if any arm of the transaction has questions or concerns, the QI can address them at that time. With that being said, yes you can use out of pocket funds to fund the purchase and improvements. Of course you can take a home equity line out on your current property and pay it back with the funds from the sale of your relinquished. Those funds would be looked at as out of pocket funds. If you don't have the out of pocket funds, I would recommend reaching out to a hard money lender or local bank. The larger banks like Chase and Wells Fargo don't service their own loans so engaging in a transaction like this doesn't fit well with their structure.