Got sick of tripod, leveling and alignment etc, so decided to dig a hole and put up a pier.
Footing was 450x450x600 mm, 12 bags of premix concrete.
Pier is made of 100x100 mm SHS steel, reinforced with gussets, fixed to a 400x400 mm concrete pad with 4x12 mm threaded rods cast into the footing.
SWMBO is in for a surprise....