Isn't HJ using bed-mounted brackets, that are determinate unsafe on modern beds?
I have TL set on my long bed Ford and do have to remove it for fueling. Don't see the way around it. Takes about 5 seconds to take down and maybe 7 to put back.
I am in favor of stainless steel whenever it can apply. I have chromed FastGuns and they do show some corrosion.
Also pay the attention to rod lengths. I hate using chain extensions.
As mentioned above - aluminium when sprayed with salty mud will corrode and the material doesn't flex as much as steel does, so I would rather buy steel and spend 99 cents every season for a can of spray paint.