Raymond: [note edited after measurement]
I would suggest you look at http://www.westsailparts.com/ServiceManual/#A-11 and ask Bud about the ss sprit (it is a great thing), I am sure it is a lot less than 10k. (note: on the 1/2" ss all thread: if you use 4" sections of the hard plastic blue water pressure tubing from home depot, to bush the althread as it goes through the sprit, it should work out very nice.)
If you also need the platform then why not make the platform your self (not hard at all = saw and a drill) http://www.sv-galena.com/WOM/images/FullSize/Bowsprit_platform.jpg mostly out of 1.75" wide [5] quarter teak with 1pc of 6"wide x 86"lg 8 quarter teak cut on the diagonal to make the two outside boards. (please note on the dwg it shows 1 1/8" thk boards, on my platform they use 13/16" [1"]= std [5] quarter teak and it worked out very very nice, also my platform is just 2 of the right side w cutouts for the anchors.
I also think Bud has the railing, if your's is all gone. maybe 4K for all, if you do the work your self. ck with Bud for $$$'s and shipping costs.
Now; if you have rot in the deck, it is going to cost more! could be allot more?
I am not saying that it should cost that much, for your repair; but if it does, and you can't afford it, then you are on your way to spend even more (X $$'s /month for Y# years = big big $$$$$$) to have the dream but not a sail boat. (I do hate to see that, as the whole world losses in the process).
Lastly please do get at least 3 quotes on the work!! as there can be, (often is) gouging when having work done on a boat any boat.
To that end, I have NEVER found Bud to gouge, he has always been fair to me, so what ever he tells you, should be an OK price on what he sells. [I did not say the very lowest, but one that is better than 70% of the people out there. And when he tells you something he keeps his word]
[ I am sorry, but from the other coast I do not have any references for a shipwright near you, which may be all you were asking for, sometime we over reply to a question. Also to this end you may want to look for some one teaching "wooden boat building" and see if they can do a new bowsprit as one of the class demo's for less $$$]