Hey Glen,
I've found a good W50 here in Adelaide and will be getting it on Friday. Wondering if you are able to post up a list of what you used to fit the gearbox (i.e. What size studs you used etc). My friend is a mechanic and we have a workshop we can use, just want to make it as easy as possible by having all the right stuff with us and a rough idea of what to modify.
Feel free to PM it to me if you want ;)