Does he fish from a boat or is he a pond bass fisherman?

Just in general I would get a collection of proven gear. I appreciate a gift card but unless he is hard core he will likely fish with whatever you choose especially if you sell the items with big bass stories. Jack Hammers or Megabass 110's or a yellow magic topwater are good because they catch fish and are at a price point that he might not buy for himself. A collection of pond baits can be fun because that usually means future fish catching. A couple of bigger ticket purchases like above, some tungsten weights, a couple of sizes of quality worm hooks, couple packs of worms, a couple of squarebills, some small spinnerbaits and buzzbaits, a few jigs, a few lead heads and keitech swimbaits should eat up a hundo pretty quick, provide a nice haul and create a really fun gift pack.

He has a trailer slip on Lake Fork, but no boat. One of his buddies has a slip and a boat on Fork that he fishes with a lot. He's good on rods and reels. I am trying to avoid the gift card route to try and get him some tackle that he'll actually use. I don't believe he has a digital scale. That is a great idea though. Can't ever have enough tungsten weights and line!

No brainer. One of these or all 3. TW Gift Card, Bass Pro Gift Card, Academy Gift Card.