Chain of forms to addresses identified in forms

We've recently came across this scenario: Candidate is expected to complete a form; then that form needs to be sent automatically to 3 consecutive reviewers (which differ per each candidate) who need to complete their own forms.
Example:
1. Candidate is sent an Orbeon form to complete; one of the fields is reviewer 1 email address -> candidate submits the form
2. On form submit rule extracts reviewer 1 email address from the form and generates another form to be sent to reviewer 1 (ideally together with the candidate form as an attachment) -> reviewer 1 completes their form and one of the fields in that form is reviewer 2 email address -> reviewer 1 submits the form
3. On form submit rule extracts reviewer 2 email address from reviewer 1 form and generates another form to be sent to reviewer 2 (ideally with the candidate and reviewer 1 attachments) with a field for reviewer 3 email address -> reviewer 2 submits the form
4. On form submit rule extracts reviewer 3 email address (together with candidate, reviewer 1 and reviewer 2 attachments) and sends another form to that reviewer.
Easy peasy :)