Access hole cut to get to gearbox mounting nuts

The last time I swapped the gearbox it was a real pain to get the gearbox mounting nuts off half a thread at a time. Yesterday I started to undo the nuts and thought there as to be an easier way and here it is I cut 2 holes in the tunnel big enough to get a racket in, Result, nuts off in a couple of minutes, I made a couple of ally covers self tapped on with a bit of sealer behind them job done.