Where is it better to store page snapshots and how to load the robot?

Question

PHP

Good afternoon, there is a task to store the full unloading of the page (since a lot of data is loaded via ajax (in the form of an endless scroll), and the search engine needs to show this whole thing).
Unloading I think to do once a week according to the schedule.
There were two questions
1. to store simply key value? Key - page, value - full content
2. Uploading with more than 2400 pictures will come out, how will the robot behave with it? Maybe it's worth paginating this case, as it was done before?