Private/Hard Money for a downpayment?

[Mark Welp]

I am getting ready to close on my first rental property (SFH). I am doing a conventional loan on a 30 year fixed rate with 20% down. I have the capital and funds for the down payment, but I am looking for other ways to fund the downpayment (hard money, private lending, etc.) as I am in the buy and hold game.

Didn't know if anybody has done anything like this before just to preserve funds..hurts cash flow, but preserve some funds.  

Thanks in advance!