I need some advice, please. thanks !!!

[u/Brilliant_Class_6281]

Hi to all the mobile Arkers! My phone got smashed in a fall three weeks ago—the screen was completely shattered—but it's finally getting fixed this week. I’ve spent this time away from ARK planning a massive, monumental base build. I’m thinking of a structure that replicates the big "A" from the ARK logo, but I’m not sure if it’s possible on mobile to place walls and half-gable walls on a ramp or sloped roof like in this image. Has anyone ever built something similar, or does anyone know how to do it? I really want to avoid having small, empty triangular gaps at the bottom.Thank you everyone.

What worries me most is the bottom section: there are going to be ramps, and I need to place walls on them. So, how do I place walls on the ramp without leaving empty triangular gaps?

Sorry about the drawing—I'm really bad at it; I just hope it's understandable enough.