Dont sweat it john
Hang ten I have some spare, they are old but still usable, no nasty rust and the rubbers intact.
Mail me at luke@nsrworld.com or if thats no good get in touch with andy and forward your adress to him and I will try and get them off this week before i leave the country for a month, otherwise you will have to wait.
We can sort out some cash for them and postage once I have your details
Hope this helps
Luke F
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Farting is funny