Wood Support 2x4 For barrel - Vertical design

[Aqua Splendor]

Mixing station.
I do have some space constraints.

I'm trying to figure out what is the most solid way to lay out the 2x4 to-stand barrel with water with the less amount of wood possible.

- I need to take out the barrel in and out for cleaning maintenance
- It needs to be all inside of 70x70cm no more.

So far those 2 layout don't inspire me confidence.
(The barrels will be cut at 2/3 mark and never full)

Thank you.

 

[Aqua Splendor]

Another version was this one:
But Barrel won't fit inside.

 

[Aqua Splendor]

got inspired by making this post, here is a hybrid I think could work?

 

[RocketEngineer]

Looks similar: Carry on.