Confused? Please only comment if you know I would call but I don't like talking. My husband is the smarter one and if I call I'll forget.

So I live in Houston, Tx my husband and I are looking in to buying a house or putting a down payment down for one. We were going to try to get a 300,000 loan but I know it might be to much and they wouldn't approve. So my husband told me what about a 30,000$ for a downpayment then we pay the rest monthly if that's possible. Right now we've been building his credit up it's in the 600s or 700s. Will there be any places that do that and if we put a downpayment will we be able to do monthly payments for it? Please don't judge we are still pretty young and no nothing about houses or loans.