i was thinking we could organize a slider day some where maybe with a winch as well i've got a few PVC pipes lying around so i could get one happening
unless u put it somewhere that no one else uses it will probably have to be removable (take it down for a day and take it back) other wise u will end up finding that waterways and/or water police will have taken it and u wont get it back because u didn't have permission to put it in there.
ps: it is very unlikely that u will get permission to leave it there as they say that it is a danger to the public.
Maybe something like this would work. Put a couple of benches together with some form of piping on top and maybe some stabilization on the bottom. At least they are portable.
The lads here have used two lots of hundred mm pipe joined as a top and then a 100mm pipe every few metres as a leg......pretty easy and very effective.
PM me know if you need help with it. From the looks of the wind I won't be kiting and I'm also in Port Melbourne.