Today I received and assembled the periscope and riser. The attention to detail is fantastic!! No instructions with the parts, but a look at som reference photos and a second look at the parts made it close to impossible to go wrong.
While waiting for more droidparts to arrive I thought I'd start on the Sandtroopers pride and joy - the T21 BFG. I'm copying most of Pandatrooper's build found over at mepd.net, but plan to use a fuel line for the ribbed section and a copper brake line for the smaller tube bit (from ribbed section to sight).