84 115 evinrude is there a good break down of the water pump assembly?

hi
i dry fitted and such the water pump but my spline O Ring is much bigger it seems

also i have an extra O Ring in the kit

this is for the 1984 115hp evinrude

now on this site it doesnt show the updated water pump

but on
http://www.sterndrive.info/outboardmotor/1978_1998_v4_90_degree_.html

it shows O ring under the impeller and inbetween the cup and the housing i know the one O ring fits in that groove

but watching the video
https://www.youtube.com/watch?v=6WZMArnU48c

it doesnt talk about that plus it removes the O ring under the impeller


my water pump is the Sierra Kit... is there a good video or the order of all the parts for this Engine for the Sierra kit as i cant find this company Sierras website to request the proper installation of this engine

so all i need is a diagram and which o rings etc as the stern drive site doesnt show what o rings they are so i not 100% sure

i think the sierra goes
starting from bottom to top

paper gasket
wear plate
thin O Ring
white impeller keyway
impeller
SS Cup
Inside O Ring that fits inside the groove of the housing around the shaft
Funny Looking Housing O Ring
then the other 2 parts
and Fat O Ring at the top by the spline

and i waiting to hear back from my omc dealer about the 847 glue so i can assembly this puppy