Need advice on a new home flip

[Matthew Mason]

Newbie here.  We contracted to have a new home built in the Austin, TX area and it is nearing completion.  I am currently beginning my marketing to find a buyer for the home and I plan on having them close on the sale the same day we close on the buy.  I can scrape up every cent I have and use cash to close on the home, but I really don't want to. Of course, I could bring in a hard money lender to do it, but I'd like to avoid that cost. Any other ideas?  I've heard of "assignment of equity" type of deal, but not sure how that works.  I feel like I need to avoid involving the homebuilder as they would love to have this home back.