When I looked into buying an f12 150 Istar achro it was about the same to buy it complete as brining it in in bits. As DIY is my thing, and the fact that Aluminium tubes are readily available in the sizes I needed, it ended up being 1/3rd the cost to make my own....easy decision for me.
Glen I have seen your CN thread and BillP does make a good point on the 120 ED Skywatcher, a bit more expensive but after shipping etc it might work out pretty much the same price
Matt