E30M3 Race F10 535 R1150Rt M Coupe
This has been a concern of mine since I first read this.Those cracked rod caps have uneven height and surfaces at the sides, so if it was wrong side and torqued down to spec then I think the rod is bad now -- rod and cap had been deformed.
I'd likely be (at home DiY) using old rod bolts and doing plastigauge a few times in different spots to be sure.
Then starting/driving carefully. It should.....start of with a slight noise if something is untoward.