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Gaining access to an *AttributeTypeController and rendering a special form

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It's late. I'm tired. I hope this does not sound "mindless."

I run a perl script which gathers information and returns in the $output variable of a php exec(), a collection of various arrays.

Say I want to pass one of those arrays into a custom AttributeTypeController::form() Essentially, a $perlArray replacing the $value inside this code (which is typical C5 code setting a database value):
public function form() {
  if (is_object($this->attributeValue)) {
    $value = $this->getAttributeValue()->getValue();
    $this->set('key1', $value->getKey1()); 
    $this->set('key2',$value->getKey2());
  } 
}

Within the custom attribute's directory I can place a different "form.php" , say "special_form.php". Which I can then call with render('special_form') and display the key1 and key2 values I set to it, something like:
public function special_form($perlArray1, $perlArray2) {
    $this->set('key1', $perlArray1); 
    $this->set('key2', $perlArray2);
  } 
}

Unfortunately, I CANNOT just do:
Loader::model('attribute/types/special');
$atc = new SpecialAttributeTypeController();  //this fails
$atc->special_form($perlArray1, $perlArray2);


The failure is due to the parent AttributeTypeController __construct method needing an attributeType object passed in as a first parameter.

Tired and contemplating... I now see the render() I want to call is a method of the AttributeKey class.

How would you suggest the best way to get my perl obtained data into the C5 architecture so that it can be saved into a custom attribute's database?

EDIT #1: Note: I need to route this upload through each (there's about 20) custom attribute directory so as to minimize static code.
Ricalsin