Priority should be facial hair removal... Sooner or later you will be ready for "full-time", and you really don't want to still have deal with facial hair at that moment. I made a mistake... as I thought laser will zap it all like very quickly, like in maybe 5 or 7 sessions... so I waited a little longer, than I probably should. Turns out, 14 sessions after and more than a year and half later, that it stops being fun while you are full-time for more than a year, and you still have to deal with this bull->-bleeped-<- every two-three months.
Save for FFS, just in case if you might need it in couple years. If it turns out you don't.. well, I'm shure you'll find many useful things to do with $20,000...