Is the entire clip still available or has it disappeared into the black hole that is the Splosh! film archive?
I'm fortunate enough to own a copy. But, yes, it has gone the way of all the others. There are many I no longer have/didn't get round to buying that I wish I had done.
Official, original manufacture tapes and DVDs (NOT pirates or copies) may still be traded second hand of course, but these later scenes were not released in this way.