I went here to try to find the archives:
It leads to this link:
https://www.mongodb.com/download-center/community/releases/archive
But…
So you can go to the source where I assume there is truly evrything!
I hope you find what you need 
!
Also, another solution could be to one shot it complete with mongoexport & mongoimport. If you export everything in JSON and these files are correct without complex types, there is no reason why it wouldn’t work. It’s gonna take a long time but… Maybe it’s worth it rather than doing the entire upgrade path. I would give it a shot maybe? mongoexport 2.0.7 a small collection and see if you can mongoimport 100.5.3 in 5.0.9 ?
Cheers,
Maxime.