Hard cold start, new filter, accumulator, regulator

[Kyngfish]

So when I got my W124, I replaced most of the ignition items, cap and rotor, spark plugs, ignition coil, fuel filter. I had a fuel smell coming from the side of the car so I replaced the accumulator, and while i was at it, the regulator. I also replaced the six main injectors and seals.

Car runs mostly fine. But at cold start, it takes a bit to crank up (even delays very slightly on warm start). Occasionally when I first hit the throttle after start, the car will hesitate slightly at first, then run fine.

Wondering if the next step are the fuel pumps.