Honestly, using a spudger you’re going to likely crack the housing. I’d 3d print a casing with holes over the sensors before doing this, but I do understand wanting to get the OG housing in good order.
My unit is over a year old now, has minor cracking. a chip in a corner with tiny cracks around that, seems to be a set screw underneath. Also a hairline crack developing going up the front panel from the usb c connector underneath. Honestly I could care less about the cracking unless it got obscene and opened up, but I plan on making a compression fit 3d print anyway. Light leak/dust getting in are not acceptable, and I’m nowhere near that, but I could see it happening in a year or two so I need to get it on it.