I've been running an Absolute Black wide narrow chain ring with a regular Shimano rear mech on my cross bike without issue so far. So the clutched rear mech is a nice to have.
Even better then, just bin the outer ring and use the inner which is presumably already in that size range. The inner is better as a 1×n chainring as it doesn't have lowered teeth for shifting.
You're overcomplicating things. Just remove the inner ring and FD, if you're not riding off road you don't need all that fancy stuff.