Buying single Family home using HELOC as Down payment

Hello, Bigger Pockets crew. I am currently purchasing a single family home for 77,500. I took out a HELOC on my residence a couple years ago and I've used it once since. I only have 51,000$ to pull from on the HELOC. I do not have the down payment amount with my primary checking. What is my best option for funding this deal with or without the use of my HELOC.