Hi Lads,
Thanks for the replies. Just a quick update.....
The Welsh guys in castlemarine would refit the rubber bush, but won't have any to fit my prop till next month probably and from what I can gather with postage etc would be less than £100 but don't quote me on that

as I am a bit unsure. Also everyone else is telling me you can't refit it.. Seem like a nice bunch though, but given the time frame etc I think for me they are out of the equation.
Got a price of €176+VAT from Dan Fay - the yamaha dealer in Dublin - for a replacement prop (160-180 I was quoted in Cork - presume that was inclusive).
Found an aluminium one for around $105 dollars on ebay p, they don't have my exact pitch and diameter (9 1/4 x 9 3/4) the closest being 9 1/4 * 10, but I imagine on a long liner a 1/4 of an inch isn't going to make a blind bit of difference. I was wondering if anyone could suggest if that pitch and diameter is appropriate for a long liner, as I could go slightly smaller and bigger it would appear.
Anyway, spoke to Derek of d.d.m.marine as per tanglerat's suggestion (
http://www.sea-angling-ireland.org/bulletin%20board/viewtopic.php?f=14&t=20923 ) just now and he can get me a new prop for €110, so I'll probably go for that (unless any new information comes to light today) seeing as he comes highly recommended, was straight back to me, reasonable, helpful and I'd rather keep my business 'local'. Now need to get it organised to get down here. Anyone from that neck of the woods heading to Cork in the next few days....

or I'll have to arrange a courier.