So I just made this partially populated mockup of how I'd like my consumer unit wiring up so I can monitor power consumption of each circuit, remotely enable/disable individual circuits, set timers on immersion, etc.

What potential objections could my electrician bring up regarding asking them to implement this sort of setup? 

(aka, where did I fuck up and what needs changing to make this passable)

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...the first obvious thing I'm already aware of is that the smart relays aren't from the same manufacturer as the RCBOs. That one's kinda unavoidable though. Would a proper MEIWC make this passable or would it always result in a C3 note at EICR time? (not the end of the world but I'd obviously prefer a gull pass)

Could having the lives coming in from the bottom and looping over the busbar be an issue? (busbar cover isn't pictured but would be present)

The two legs of the ring pictured come into the smart relay then a 6sq.mm bridge links that to its respective RCBO (6mm being greater than 2x2.5mm), is that acceptable?

Trimming off (or bending down) every other busbar tab to make space for the DIN relay next to its respective RCBO, acceptable or not? 

...I figured staggering them like this was better from a thermal perspective vs grouping all the RCBOs together at one end of the board then grouping all the heat generating smart relays together at the other (which would also be messier from a cabling perspective)

Anything else I'm missing?

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If the whole thing is a no-go, what's an acceptable/proper way of a achieving the same kind of end result?

Any sparkies fancy commenting on this potential consumer unit layout?