So.. some updates, returned the 0.83 for a credit note and will be using that towards a turbo drain, lines/fitting kit, etc.
Also ordered the 2nd revision of Spool Import gears, hopefully it doesn't need to come out again.
Lastly, come to an agreement with Sparesbox, they're doing their best to rectify the poor experience and making it up to be by shopping a rear housing at a reduced cost.
Guess that worked out ok, just in time for CNY.