Well, sort of.
Heres the quick 3d render you wanted. Open it up in mspaint or whatever and use the text tool to explain how stuff goes together and what goes like what. Use mine as an example. Then send it to Hurst. Oh yeah, the cap IS on the filler, its just 35 per cent transparent. Be sure to mention something like "The cap is translucent for clarity" or something like that, so he can tell its there/why it looks clear.
Dont forget
Corners of boxes
Venting said box
gasketing the lid to the box
gasketing the lid to the fill plate <- MOST IMPORTANT PART
So yeah, here. Sorry its kinda crappy, but i didnt feel like hunting for your cells dimensions, haha.
Welcome to the cult of JVL drink the koolaid or be banned.