SSR Means nothing. My boats registered twice cept I've got the old number on the boat and the new certificate that I've never got round to changing the number to.
Just give the chap a receipt and say something legaly like
I hereby and wherefore. Whilst being of sound mind.
and without just impediment. And crap like that.
Or sold to Mr???? one XX boat in terrible crap condition. For
£ Loads of 000000000,s . Sold as seen. M Mouse Esq.
Main thing is.
Colect the cach !!