Problems drying out chili sauce and in to a powder
Ask around for someone who has an Excalibur or similar style tray dehydrator. One of these coupled with a silicone (or siliconized) sheet on each tray should get you where you want to be. You might want to add a thickening agent of some sort if your recipe does not have one already.

Why this style? The fan is across the back of the machine and blows evenly across all of the trays instead of the fan on top down through the middle type like the Nesco.

Good luck.