https://www.shapeways.com/shops/csbprops?section=Disguised+Rebel&s=0
This is a link to a page where the parts are located. As near as I can tell, the file ES AFK COM is common, regardless of which size you build. Then for a 25mm tube, you want ES L DA 25 and ES CST 25, or the same file names...
Someone has done them in 1/6th scale on Thingiverse and posted the files, so if there is any way to scale them up to full size... :D
You can find them here: 1/6th Scale HIC Panels