I painted it black since the frame will be black:
And I started placing the vinyl sheet on the cardboard. Vinyl honestly is a bit of a pain to work with. I had to iron out the wrinkles with a towel in between and that didn't get out the fold marks. So them I steamed in the shower having to go in and work out the folds with my hands every so often. And then I made the mistake of gluing too early so I was short on the top. I had to spend another 45 minutes getting the glue off and soaking it in hot water to get the remainder of it off so it wouldn't look bad.
Getting close to being done though!