update..
well now dentist reckons that a crown veenerr might not last very long and a screw in would be better....Thats bloody great after you put the post in I say..Ok from here on discussions first then $$$ and work done..
So anyway after a bit of a discussion with him the specalist and the good old dental nurse (who i trusted more)
I will get an acrylic crown..
not as strong as enamel one
less than half the price
colour not as good
less than half the price
So the concern is that due to the damage to the tooth the post may fail and hence the whole shebang failing .. so agreed better to go in at a lower $$$ investment if doing a crown
total costs now down to $2200
i am happy with this outcome as he has done 2 fillings on the teeth either side as well, so if the smashed tooth fails in 2 years I will just re assess, but if it fails it is most likely to loose the acyclic rather than the post and filler as the acyclic is weaker so a built in weak point to save the post.
specialist said he has replaced 3 acyrilcs on same patient over 10 years ..but if it was enamel it would have been non repairable after first one.
So i said ..."oh ok bit like CV joints on a GQ ...better to change a CV than whole axle and hub " for some reason he did not understand.....

Jet