Camshaft seals - Can anyone help locate please

Hi all, I`m currently working on my 1993 Cappuccino and need replacement camshaft seals. The part number on the old units is BH1941E and the outer diameter is 47mm internal diameter 32mm. Nothing is coming up from dealer, after market suppliers or the usual Euro suppliers like AutoDoc so we`re currently stumped and hopefully one of you wonderful people on here may have carried out a replacement and know where we can find some [ well 2 will do!! ]
Thanks in advance for any help
Thanks in advance for any help