fuel cell ? for 97 tacoma

i was looking at the tacoma on your profile and i see that you only have the pump with the 2 hoses ids the other piece with the 3rd hose needed any help will be greatly appreciated also what measurments should i look for in a fuel cell?

When assembled, the tank had all of the stock hoses connected and functioning. Here in Cali they don't like fuel cells, so I spend the extra time making sure it's all there. What dimensions are you looking for? The fuel pump and stock fuel sender should fit inside. And if possible build a dam around the pickup to keep the truck running while acellerating or cornering.

another question the middle line has flared nuts and a tube do these serve a purpose? cus if i keep the stock tank im gonna re route my lines but do i need o keep the tube on it?

That line must be the fuel suppy line. That line is probably at about 60(ish) psi. You dont need to keep the flaired fitting, but you do need to make sure that whatever you change it to is a solid connection.