I do applaud you for doing this.
I myself also missed the EB license by a few months, got mine in 1998. Those in 1997 had theirs converted to EB with the changed. I however just can't be arsed. I have towed many a heavy things and pulled over numerous times. They hardly ever even check the actual code. Even when I ride the bike and show my drivers license by mistake.
Never till this day been fined for towing anything above 750kg. And I'm well aware it's only been luck, but can't be bothered to go through it all again.