The cutting guides printed in the instructions for both types of grills are off.
Measure them correctly before cutting. I also found it best to use a black marker pen with a fine point to draw the outline and a sharp pair of of scissors to cut them out. Using scissors eliminates any tearing or fraying of the mesh. The grills can be secured using ordinary plastic cement such as Tamiya "extra thin" etc.
In assembly step 11 parts "K25" (front idler wheel swing arms) look identical on both sides, but the shaft that attaches it to the hull is slightly wider. Keep this in mind when the time comes to attach them permanently. Obviously the idler wheel wont fit over the wide end. Also, DONT glue parts "K25" to the hull until your ready to mount and shape the tracks!!!
Also in assembly step 11, I found that the bottom flat run of track to be a single link too short which prevented me from properly aligning the angled sections. I extended both bottom runs of track (parts "K1") at the front by a single link each using parts "H8" & "H2".
In step 23 don't install parts "H3" until after the following step 24 is completed or you will not be able to slip your selected "collar" (Part "D41" or "D44") correctly into position.
In step 32 incorrect part call out. "E30" should be "F30"
Sub assembly step 38a. Incorrect part call out. "F44" should be "E44"
I also deviated from the instructions by keeping the upper hull (with side skirts attached) separate from the lower until after I'd finished priming and painting the base colour. This allowed me to better position and secure the skirts from the inside and also allowed me to paint and weather the tracks separately from the hull. I'd also recommend leaving the wheels off until they have been painted properly as well... then move on to the track assembly.
I ended up leaving the upper runs of tracks (with molded sags) off entirely to aid in final assembly as they can't be seen whatsoever and needlessly complicated the build. The camouflage was then applied once the hull was joined together permanently with the wheels and tracks installed.
Also note that when assembling the turret housing, that the front and rear panels will overlap the sides a little, and that it is tempting to try to align them flush instead. Don't do this as the overlap is intentional!
Completed September 09 2020