Laundry Sink and Washing Machine vent/drain

Full disclosure: newbie here.

I'm relocating my laundry sink + washer/dryer to a different wall in my basement. I've laid out my rough in of what I plan to do in the attached picture.

I don't have specific dimensions yet, but other than the top of the standpipe needing to be above the top of the sink and need the bottom pipe needs to slope 1/4" for each 1' of run, are there any other things I need to modify?