A One spot should have no problem running all that, but...
I've had two One Spots crap out on me over the last 5 years. Never ran more than 3 pedals on them at any one time either. And all the pedals were under 100mA draw each, well under what a One Spot should be able to handle.
A 5 port Cioks SOL might fit under there. They're slim line. But I don't know. Sweetwater has them for 175
Sweetwater also has a smaller and slimmer 4 port Cioks Eventide PowerMini EXP for 139
Cioks gear is some of the best around. I now run a full board, 12 pedals, using a Cioks DC7 & Crux Converter. It powers everything flawlessly and I have no issues with line/signal noise at all.
