Any more on Morecambe Bay?

I have just read the From The Archive article in OBM442 about the Morecambe Bay crossing and the mention of a Harley-Davidson SX125.

I understand very few of these machines were sold and even fewer now exist. However, I do own one such machine (see photo). Does anyone remember the details of the bike that made the attempted crossing? It would be nice to know that it is still around – and even better if it’s the one I own.