SDS compliance audit is in a month and I just inherited a disaster from my predecessor

So I took over the EHS role about two months ago and I'm now realizing the SDS situation was neglected and a complete mess and we have a corporate compliance audit coming up.

We have binders in the break room and near the chemical storage area but half the sheets are from 2018 or earlier, some products we use daily don't have any SDS on file at all, finding anything specific takes forever, I pulled one binder yesterday and found sheets for products we haven't even stocked in three years.

The plant uses maybe 150 different chemicals and I have no idea if we have a SDS for them or not.

I've been googling manufacturer websites and downloading updated versions but at this pace I'll maybe get through half of them before the audit, and that's assuming I can even find current versions for everything which I can't for some of the older or more obscure products.

Is there any realistic way to get this sorted in a month?