Ah Sycamore I must have had my wrong head on last night. The serious one!
my view is that the people involved have shown a lot of ingenuity over the years. Harry Packe and his wicker baskets for instance. SEAC pack is still a masterpiece today. We went from the highly technical in the 50s with MSP / HSP and then through an agricultural stage where everything had to be done with a bit of wood and cord. Not sure when Dufelyte replaced straw in sacks. The motorbike board I saw develop into an angle iron frame around the board with Quick release pins to remove a tubular steel roll cage. There were steel posts to tie two motorbikes upright.. The airdrop kit weighed more than the payload. Sorry I don't have any pictures. I don't think it got beyond the trials phase. Effort was being put into quads bikes (Honda Grizzly I think) No idea how far this got on the K. Effort was being put into the J where restraint requirements were being adhered too.
Again, only my view, but we appear to have gone all agricultural again.