I cut the dividers out of my first version front panel and it actually is relatively close. Once aligned based on the location of the bypass switches I'm left with a 5-6mm gap on the far right-hand side, but otherwise the fit is nearly perfect.
Some quick measurements suggest that you've got the same slot height and bypass switch spacing as before, which seems to be fine. I measure 5.07mm for the divider between the bypass switches and large slot on my panel. I filed it down inside a bit, so that may be why its different than your measurement. I think 6mm would work fine too, as there is a little give at 5mm.
On the right-hand side I measure 47mm between the end of my slot and rightmost edge of the board. It looks you've shortened the large slot and re-centered, which seems correct, at least to within 1mm... a little room for error is a good thing.
If you keep the bypass and first switch spacing the same as round one, and shorten the large slot by 5mm on the right-hand side, I think you've got it (re-centered of course). Does that fit with what you've done?