Hotpoint sprayer arm replacement

Like an idiot, I snapped off the plastic pieces holding the sprayer arm in on this Hotpoint HDA2000F00WH dishwasher. They’re part of the assembly above, which is reasonably priced. Are there good directions anywhere for making this repair??

Thanks
Scott

You will need to order the entire lower spray arm assembly P# WD22X154. The base of this screws into the tub.