Superb service from Strongflex and got full rear suspension pack + the new rear crossmember bushings today:
The Eminent Mechanic was happy, but we suspect the end crowns might not be a snug fit and would need some shaving. Time will tell as the guy who was supposed to sand and paint the suspension parts and crossmember never did so. Will update further story here and to Strongflex so they can adjust the product in case it's not 100%.