47-55.1 Question about ceiling on a chopped truck...

[hobo]

Okay all, I need opinions of those far more experienced than me. This is my first truck build, and I THINK the PO that did the chop job cut the roof in half and then riveted it back together?? Would someone take a look at the pic and tell me how you would cover this? Is there an inside metal roof panel, etc. or would I need to use the plastic headliners?

Since it's a rustomod, I guess I could just leave it alone as well. I'm more curious what was done than anything...