That depends on the amount of content you post. 1000 people watching a reasonable length video might only be $1-2 per video, but 10-15 videos a month would be $10-30. That can be more than 3 patrons.
Yeah - but you dont need to post weekly content with patreons, you can get by with monthly given the subscription, and tbqh you can probably do bi-monthly with many types of subscribers - supporting instead of expecting content.
Also with 1000 subscribers you dont guarantee 1000 views, just potential views.
Most people I know using Patreon post weekly, with maybe 2-3 posts a week. That includes 2nd-tier content like WIP and polls. Patreon requires a substantially smaller commitment, but it's more difficult to find patrons than viewers.