I had started drawing up a side-aligned setup as well. I'm not sure where your inbound LRT platform ends up going, though. Are you going to "shuffle" the LRT tracks and switch the platform from the outbound side to the inbound side?
I do think side aligned is the way to go (both Calgary and Edmonton have used that arrangement on their most recent LRT extensions). One reason is that you can kind of "cheat" on the transit platform on one side by just swapping out the sidewalk for it - it's less of a problem for LRT than for buses since the platform itself is so long. Another real world "cheat" is to acquire a small piece of adjacent property (e.g. its setback, if it has one) to use for diverting the sidewalk onto.
As to RoW requirements, 3 m is getting a little tight for LRT. LRVs are generally in the 2.6-2.7 m range and you also need to account for supports for the overhead wiring. 3.2 m is probably about as low as you want to go for LRT lanes.
For driving lanes, if there are more than one per direction, 3 m is acceptable, though barely. But if you drop to just one lane (as I did) then that single lane needs a bit more width for large vehicles like trucks. Snow furrows also have to be accommodated somewhere.
Similarly for bike lanes, I stuck with their default of 1.8 m, but 1.5 m seems fine to me, especially if there's a second bike lane and they're separated from all else.
Right now I've got a side-aligned arrangement at 32 m, but I want to show what it looks like at intersections as well, so I'll post them together when I'm done.