Good to see more & more Aussies on here now.
Yes there is a Toyota powered LB that resides in Canberra, that has been doing the rally sprint series in Sydney for a couple of years now. (Motor is currently out of the car)
It was one of the first with a Toyota motor I think.

From the knowledge I have no full LB Kit has being registered in OZ, but that is all changing soon
There are several versions floating around Australia, some with rego some without.
Problem here is every state & territory has different rules.

Cheers
Chris