I made a modified version of the top endcap to hold a usb led that is angled at 45 degrees to light up the build plate I just mirrored it in the slicing software to make another for the opposite side
USB LED I used -
https://www.amazon.co.uk/PATIKIL-Portable-Bathroom-Bedroom-Sleeping/dp/B0BVTHP8G7/ref=sr_1_184?crid=38QFNUWFFMVII&keywords=USB+Light&qid=1682672926&sprefix=usb+light%2Caps%2C70&sr=8-184
The author remixed this model.