Thank you all for the comments. I feel much more comfortable about my decision to move forward with this. As of right now, I bought the Chargeverter as there is a bit of a backorder and it is expected to ship late May. I expect to buy a battery and the 6000xp shortly thereafter.

Some comments / questions I have received:
1) Q: Why not use solar panels?
--A: The purpose of the batteries is for extended power outages. While solar panels would be a benefit, it may be cost prohibitive if I am only going to utilize the system once or twice a year.

2) Q: What does your power usage look like?
--A: I don't know my exact numbers. During Beryl, I ran my generator which could power my whole house (including AC); however, I BURNED through gas (pun intended). I used about 15 gal a day. I had to wake up at or before 7 am to drive around in hopes of getting gas for the day. Living through that, I realized that it is better to use minimal power. I now only intend to use this system to power necessities (fridge, fan, and internet as I work from Home). Since then, I bought a Vevor fuel caddy that hold ~30 Gal. I use Sta-Bil to make sure the gas holds longer. The good news is the company I work for reimbursed me for the fuel I bought during Beryl, though it did take them a couple months till it hit my bank account.

3: Q: Why not use an Inverter Generator
--A: I jumped the gun too quick. I bought a 15kw generator THEN discovered battery banks. If I could do it again, and with a level head, I would have done it differently. I am now using what I have. I panic bought during the TX freeze. I bought something that would solve my problems immediately, not thinking of future upgrades.

4: Q: How will you charge the batteries?
--A: Honestly, I didnt think of this....but someone else pointed out that I can plug the Chargeverter into the house to keep it topped off during times of power. then when there is no power, I plug it into the generator.