Welcome to TM, I hope you enjoy your search for the +8.
Having owned one previously, just ensure that it does not run hot when on the motorway. The original MMC ECU was not the best they have fitted and it did require some fine tuning to get the best out of the car.
I understand the best +8 was the later 4.0L version, but I am sure other TM regulars will be willing to comment and advise.
Neil