I just pulled the replacement plate on my JS..It is chromed on the back but it is not polished like the front, Or the back wasn't prepped as good as the front before chroming.The edges look to not have any/very slight bevel and the chrome kinda rounds the edges so you won't slice a finger off.I would get one and try polishing the back of the plate Or get it rechromed.
Another possibility is getting a plate made to match the PG..that would be hot, maybe I'll do that with my JS!
Or even a one piece PG/plate.