Progress is being made with the Imperial Knights from Imperial Knight: Renegade. Two arms worth! This is going to be a slow build, it seems. I'm aiming for a Knight Errant here with a Thermal Cannon and Thunderstrike Gauntlet. Or at least I was originally. I clearly have two more arms to build and one of them is going to be a Reaper Chainsword and the other will likely be Battlecannon. Therefore there's some flexibility in build with these as a consequence.
In building them, they were moderately simple, but a few of the smaller bits (the pipework) proved to be fiddle some for my sticky fingers. Otherwise, they're all good.