I am using the Ludwig: Jagdpanzer IV L70 kit and a highly modified Heng Long Panzer IV Lower.
I have re-positioned the Return Rollers to the late 3 Roller configuration as well as lowering the last Roller and raising the Drive Sprockets. I have also replaced the first two Road Wheels with all Steel Wheels. When I receive the Steel Return Rollers from Tom, I will get them mounted and complete the Return Rollers.
I am using MATO 3:1 Gearboxes designed for their Stug III using Shapeways 3D printed parts designed by Warren to lift the Sprockets into them proper position.
The Ludwig kit is straight forward but does require a lot fitting to ensure it remains square, lots of sanding and filing. The instructions are pictorial and leave some things to best be figured out by the builder.


Here are some pics showing where I am at with the build.


