A good rule of thumb is to stay under 80% of the power supply’s rated max for each rail (+12V, -12V, +5V), and your rack looks like it is around ~65% on the highest draw rail (based on 781mA draw vs +12V@1.2A), which is almost always +12V.
In short, it looks like you’d have plenty of power with the regular Make Noise skiff/PSU. MN are smart folks IMO, I think you would have to use some pretty power hungry modules to exceed their power supplies for a given stock case.