This is my RDR shelf display. Printed on A1 mini, so if u have bigger bed you can scale it up. I used tree support for little gaps on the back and had some stuggle when I was removing them. There are some gaps on the characters but they look fine when printed.

I used 2 triangles to make good angle for display, but you can display without them. I had no problem to put them in. If you want you can glue it together but it's not necessary.

Feel free to change colours (paint by layer → fastest way) and share them in the comments :)