>>10
Yes, you can. You need to add the prefix "web.archive.org/save/" to your url.
So, if you want to archive the following url:

https://endchan.xyz/tech/

You need to put the prefix:

web.archive.org/save/https://endchan.xyz/tech/

It will take some time if you have CSS activated, but if you use a text based browser it's kinda fast.

>>12
I don't know any search engine or metacrawler that filter javascript-less websites. But I personally use searx and it's pretty good. This public instance seems good:
https://searx.fossencdi.org/