Well today I silicone sealed around the base of the dome, installed the metal pier, rubber flooring, seal around the support pier and the NJP mount and tonight polar aligned (see below!!).
Tonight an absolute miracle occurred!!!! After driving a star picket into the ground to mark true south using binoculars to site the SCP a couple of weeks ago before the column pour and then
siting the bolt pattern off this when pressing the bolts into the wet concrete and after installing the metal support pier and NJP mount today... tonight I found out how close I got it
....well, to my disbelief I was absolutely flabbergasted to see tonight when looking through the NJP polar scope that it was pointing exactly at the SCP, I mean
exactly ie to within 2 arc min of the pole, no kidding!! just incredible, I couldn't believe my eyes, I did not need to make a single alt/az adjustment. Now
THAT's what I call getting the concrete bolt pattern alignment planning on the money
...who needs T-Point, I have Star-picket Point
Of course as you would have guessed with no scope installed yet...not only was it cold, clear and still tonight but the seeing looked excellent too with no discernible twinkling in stars higher than about 30deg above the horizon
Oh and I also installed "La La" the Iron Chicken, she's the security
Mike
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..I had to really make sure I wasn't seeing things, I even rang my wife to tell her..and got a "that's nice dear" 
