It does not seem house hacking is possible in this market without renting out spare bed rooms (which is not an option).

https://www.har.com/content/department/newsroom?pid=2072Houston Real Estate Highlights in April, 2024:
-Single-family home sales rose 9.2 percent year-over-year;-Days on Market (DOM) for single-family homes went from...

It sounds like you're already in an excellent cashflow position with your current home, so if you can make a second primary work as a house hack, there are also ways to save. 

I am now under contract (first time) for a duplex I will be house hacking 7 minutes from a major university on 3 acres.

Low priced houses, low quality tenants, low quality property managers, low quality contractors. 

I am currently renting but I like the idea of house hacking to start out.

Even the few no money down deals I have done wasn’t really no money down deals, because I spent thousands upon thousands of dollars in marketing  and typically I had to do some sort of rehab to the property once I got it.The last Sub2 deal idea I had to give the seller $17,000, pay all the closing cost, repaint the whole house, and make payments on the thing three months while I was getting it ready.The one before that the guy was behind almost $7000, I had to change the carpet, I painted the whole house, I made a number of payments while I was getting it ready, and I paid the closing cost, and I probably spent close to $7000 on a marketing campaign . 

Currently, it has a gas stove which was there when I bought the house. 

Too many houses? 

Housing pays for sometimes 100% of the rent.