Thanks for the tip, much appreciated! I did not come across them in my search. Looks like they have a couple of pedal extension that they offer. Plus custom made gear if I see it right. I shall give them a visit once restrictions allow it. This looks so much more promising than blindly ordering from the US.
The Twin Mode clutch system sounds a bit invasive. I'm really just after something that you can attach and remove easily as it won't be needed 90% of the time. Though I like to think that it would turn the dad van into some sequentially geared monster.