Thanks all!
I was able to get a shot of the steps roughed in to hopefully give a bit better idea what we're working with.
This is access to a number of residences but is on private property. Yes, some people will dismount and walk up/down but I think most would prefer to ride up/down if we can make it work.
I'm thinking I might have to mock something up and try different slopes with a bakfiets to see what works. I THINK it is short enough that a steeper slope is OK for most bicycle riders so bakfiets clearance will likely dictate slope.
Steps here are necessary. The ramp should have been separate from the steps and this was requested of the landscape architect but it didn't happen so we're having to retro-fit.