New CCK node type input form needs to have embedded Biblio input form

A new content type, call it typ1, has an input form that needs to have an input form for 3 or more fields from the Biblio module (recent release last week exposed fields to view - or use old biblio input form). Now, the typ1 input form needs to have multiple biblio references, from 2 to 5 of them. I'd like to use CCK's multiple mode as well. I'm willing to code the override node-form-*.tpl.php, and I suppose I would use the function drupal_get_form? (found at http://thedrupalblog.com/embedded-cck-node-form-collapsible-fieldset). The idea is the input form would create the typ1 node and add to it 2 to 5 node references that point to new biblio nodes, created just before typ1 was created. Is this doable in CCK? With what add on modules? I'd be willing to settle for 5 fieldsets, instead of multiple.