Hi Glen,
Some good points, yes, i am willing to put in a footing which would allow a steel pier to go in and out in a manner that i can mark to south relatively easily. I'd probably have it out for a week max at a time - but it wouldn't have to move very far when not in position.
I'm sure some have been done in the past, but not sure how successful they would have been. It would need to put an eq8 up top.
Cheers
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