I'm designing a plastic enclosure, and now that I've moved along with the assembly, I have a connector that I cannot get to straddle the part line due to other constraints on the PCB. Therefore I need to step the parting line on the sidewall around this connector (attached a sketch with red lines approx where I want to step the part line). Since this operation is being done in context with the assembly/connector, there are already several features (e.g. the two halves of enclosure have been shelled, there is lip/groove around the mating edges, and draft goes in opposite directions on either side of the parting line, etc).
Any suggestions on the easiest way to approach this?