Yazholes

Hi guys I am now the proud new owner of a mazda 1000 ute the ute has a blowen up 4cyl engine I am looking at putting a rx4 bridge port 13b engine radiator and 5 speed in it as I already have it all sitting in the shed.

Question
will I be able to get it engineered and registed in QLD with this engine and box in it.

What should I look out for during the conversion, will tail shaft fit, will engine and box mounts line up will the bellhousing clear the fire wall stuff like that.