Trojan battery box grommet please.

I decided to buy some Trojan T 105's and had a local welder fab me a box. I'm happy with the box, but I need some suggestions on how to complete the project.

I need to find and buy good rubber wire hole grommets to protect the cables entering the box. Good Grommets that stay put. And I need a fuse block on the positive wire. Can anyone suggest where I can find these? Or if I overlooked anything?

Thanks!