Well its close to completed now, just wondering whether to weld extra corner balkwards to reduce any vibration...
So a piccy or two and if folk are interested I'll write a more detailed how to guide!
Under the mount there is 180KG of cement with 30cm 15mm bolts anchoring it (hidden below the pavers).
The mount is a 1.3 metre length of 5 mm thick steel cylinder of 140mm diameter, filled with sand, MIG welded to a 45cm square 8mm plate that is cold galvanised underneath and painted gloss black on top.
The tube at its top is bolted to a 75 cm long rod of marine grade aluminium cylinder that is 130 mm in diameter, professionally milled down to 128.8 mm. The cylinder has a 150 mm diammeter stainless steel cap 3mm thick bolted on. The cylinder and cap have a 60 cm diameter well drilled 2 cm deep with the core locking bolt passed through.
I took the original Celestron South peg and drilled and taped this into the mount attackment head and voila!
Finally the rod is then locked into the mount with 8 stainless steel bolts and its dead level!
Total cost - about $400 for materials and milling labour
