How Much Authority Needed for Page with 1000 Internal Links?

[ProjectLabs]

Hypothetically speaking, if you wanted your homepage to have 1000 links, how much Page Rank or link authority would you need at a minimum (in order for Google to crawl all the links on the page)?

Here is an example: http://www.khanacademy.org/#browse

[EGOL]

Just an opinion... if the page is a weak PR6 or better I don't think that there will be any problem.  That should put enough spider activity into the page.