From what I have read and a recommendation many years ago from a biologist Arrowleaf clover generally will do best in much of Texas, also reseeds well. Some are very poor to negligible re-seeders, not even considering our growth conditions.
Yes on inoculation until the right bacteria for that seed cultivar, has built up in the soil.
Race horse oats (whole oats) and some Winter wheat as a hedge on very cold weather has worked for me a long time, I have added many other things for giggles over the years and even had a great stand of alfalfa in Erath county, but oats and wheat work well together and will usually bring in the deer real good on its own.
What I have found when I add other types of seed, many will struggle since the oats/wheat grow so fast and block other plants out, I may get some arrowleaf to sprout good, but clovers will do most of there "thang" when Spring arrives.
I shoot for 75% whole oats, seed or usually race horse oats (much cheaper) and certified wheat seed at 25%ish.
I also take soil samples every other year or so and send to A&M, then try to fertilize to recommended requirements. The requirements will change as the ground is depleted and tilled depending on what you plant, lagumes can do a lot to improve soil over time.
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The first 5 day's after the weekend, are the hardest....