Hello Jean-Marie, I have checked on Melvyn Rutter's site and both your hose numbers seem to tie up with his list here so maybe ordering them from him is a good idea, here is his spares page. rutter parts
Wherever you order them from you now have the official Morgan part number from the list.
Kind Regards,

2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev