Sony 200 600 g oss worth repairing?

[Scehhh]

Got a broken, chipped filter thread on the lens.

is it worth repairing? The estimate i got was around 250€.  
I am concerned for the weather sealing as I plan to go on a safari for dust, And also moisture.
I do not know if it affects the inside for dust to get into the lens compartment or not. If it is worth it. I usually use only nd filter to get proper exposure for filming so it also kind of sucks I can’t use a filter

thanks for any replies/recomendations

[MaggieGreene]

Hi @Scehhh, this lens is not waterproof, although designed with dust-proofness and splash-proofness in mind. If using in the rain etc., keep water drops away from the lens. You can check all the precautions and notes on use here: https://www.sony.com/electronics/support/res/manuals/5003/5361ada664c0cca87bed9d76e8b595a6/50035650M... 

[Scehhh]

I know it is not suposed to be used  with no precaution in rain and harsh enviroments. I worded it wrong maybe,

 I am more concerd for like environmental moisture to afect it more cause of the crack like not from direct splashing but just like humidity and stuff.