I made this a few times earlier on when I mostly made kits.
I found it nice as is, without the need to add any other hops and used my standard mix of 500gms malt and 500gms dextrose.
If your going to use that saflager you'll need to brew cold at around 12c.
Do you have a temp controlled fridge?
I'm not sure how much of a lager yeast the one that comes with it is since it can be used at between 15c and 30c, according to their web site.
I just checked....If you go to Morgans new, revamped website at http://www.morgansbrewing.com.au/, you'll see they've added a recipe section. There's one for BML in there. I know - cuz I put it there!
I just checked....
I'm sure their old website used to have a whole bunch of recipes as well and now it seems there are only two?
Must have started from scratch.