Considering Fuel System Upgrades/Changes

I love the truck, and it sounds like it will really scoot. I will say that I am not a fan of the fuel cell just being there in the bed. I think it detracts from the look of the truck. Have you considered putting a small to medium size tool box there and putting the fuel cell in that? I may be the only one who thinks that, but I think it would look pretty good.
What I'm thinking of doing at the moment. I'm not a fan of the fuel cell in the back either but, the other part is when I sold this truck to him back in 2009 it had a snap tonneau cover on it. When I bought it back he said he didn't know where it was along with a few other parts I gave with the truck. I got some of the stuff back but, just not all of it. What I have considered is getting a new bed cover but, the problem is it was would leave the snaps exposed though.

Now Holley does have a tank for this but, it is smaller than the original plastic which I have. The only concern I have with the Holley tank is that I believe it won't fit with the current exhaust setup. I know the factory tank won't fit with the current setup for sure as it longer. Changing the exhaust would be hard as the gentleman who does the factory style exhaust for these trucks has been having issues and a moderate backlog of work and there isn't a shop here that I would trust.

The plausible thing here I can think of is the tonneau cover anyways. For me these days it's just a cruiser or leisure driver. It's still a work in process and I'm wanting to a moderate restoration on it. I have thought about going back to stock or near stock as I have the engine that came in this truck originally. The heads are junk but, I do it have.