Can you use e-newsletter to sent messages from RSS feed?

Hi all,

I was using Mailchimp to sent my newsletters.
With a cronjob and Mailchimp read the messages from our custom RSS feed ( it shows the latest 5 posts ).
But I went over the 2000 users, so Mailchimp wants me to pay for the newsletter.

I saw you can create a new template, would it be possible to code the template to load the latest messages?

And is it possible to code it that it automatically makes a newsletter every friday and send it ?

In short,
can e-newsletter replace Mailchimps RSS driven news letter ?