Well guys I finally managed to fix the tubular columns which were fractured and broken where the st screws go, initially by super glueing extension pieces on, followed by some heat fusion, and finally hot melt glue.
I have since been able to fit the upper structure to the lower hull using the 6 main screw columns.
Regarding the seventh column which sits on its own at the rear this is now redundant, as I have opened up that rear hatch and fixed hinges to it to make it easier to top up the smoker pump.
In spite of my earlier not so favourable comments about the Bulldog I now find I am liking this smart in appearance toy tank more each day.
