You can do the electronic metering without meter stacks…just distribution panel with the apt breakers and electronic metering integral.
If you go 4w riser…same thing, no meter stacks, just electronic module at each apt panel. Sales reps can walk you through your options.
If you stay in the basement using meter stacks, how many mains or sub-feeder CBers?
I think the largest meter stack bus is 1200A, with I believe a 1600A main you would put in the middle feeding 1200a bus meter stacks (6 per stack) going left and right.
Do you have enough ceiling height to get all these feeders out the top and create a path to where you finally start rising up….90 feeders + the other 50.
Infinity: can he route all 6 per stack, say 5 stacks adjacent (approx 15” wide each). Seems like to much material in a small window.
Just things to think about, hope it helps in some way.
Was not trying to be critical on the wire way idea, just trying to advise you not to waste time.