fields Streamlining "Select Fields" to dynamically output form/handling

[louisstephens]

So I was tinkering around with the "select fields" field type and added it to a repeater. My thoughts were I could have a user select a field (textarea, text, etc etc) that I defined and give it a name (another field in the repeater) and create their own form on the page. To be honest, I am now a little lost with rendering the form and mailing the results as potentially the form will be unique and custom every time.  The only way I know to handle the output is by going about it this way:

$forms = $page->form_select_fields;
foreach($forms as $form) {
    if($form->name === "form_input") {
        //output input with custom name
    }
    elseif($form->name === "form_textarea") {
        //output input with custom name
    }
}

Is there a better way to go about rendering the elements from the repeater? As far as the custom sending goes, I am really at a loss since it would be pretty dynamic. Has anyone used this type of approach, and if so, how did you handle this without going insane?