Re: Texas Redfish and Sea Trout tackle questions
I'd take the 7 and 8 wt. This will cover most situations.
Reels are fine, buy CorrosionX and coat very lightly all surfaces as our bays are called "hyper saline" as we are shallow with little fresh water ingress. Recipe for corrosion. I carry a spray bottle with 3:1 water/windshield wiper fluid which I spray reels, guides, reel seat, tools, etc right after fishing. Take your reels off the rod as reel seats corrode easily here. Then a quick light clean water spray in the evening.
Don't worry about drags as trout and mid size reds can be handled with just enough drag to keep it from Backlashing when stripping. Don't sweat the backing as 50yds is plenty for these.
Use quality Salt Water tapers as we always have wind here. Practice all directions with fairly bulky flies. Leaders are not critical as if the fish are there they aren't too leader why. 6-8' to 15# is a good starting point. Check tippet all the time a oysters can nick/scrape these easily.
There's an ole saying down here, "if it ain't chartreuse it ain't no use". Not a bad first choice. Water is shallow with lots of weeds so super heavy flies sink too quick. If wind is high think "sparse".