The TC Elbowband should either be a black undershirt or team color undershirt, because there's only certain amount teams who wear black undershirts and team color undershirts. the white undershirt needs to go somewhere else, but I don't know where...
You can move the forearm band to the QB wrist. The Rubber Pad and QB wrist share the same texture.
The TC wristband should ONLY be black. I don't know any teams (except maybe the Steelers) that wear a TC Wristband. In the BK wristband spot you can put a black QB wristband.
Also, I hate to say it, but you need to consider inlcuding Texmod into this. In Texmod, you make a tattoo as big as you want. So maybe, you could have a special type of player wear a tattoo that make the one-arm sleeve black. Or maybe put WT and BK wristbands as tattoos.
I also have another way you can move things around:
Spoiler: