seat swivels

Where can I buy these to fit in my t3? Looking for the kind that don't need to be welded in place. Know of a number of places selling overseas but as usual would prefer to keep it in australia if possible.

Also I bought a bumper replacement bullbar recently for my syncro which is still in transit to adelaide but wondering if anyone can tell me anything about this type of alloy bullbar. I'd Imagine they are not an approved fit for the t3.