Stock b20 bearings will be fine the rods will be fine also. Just remember to keep the redline at about 8100. As for the water pump use either one gsr or type r they are basicly the same. You can use the vtec oil pickup but its not nessesary. I would just reccomend that you find a bottom end with low miles and leave it alone aside from the vtec head. Also remember that you have to drill out the dowel pin holes in the head and plug the stock v-tec hole also in the head before assembly. Other than that your setup looks pretty good I have no doubt you will hit 200hp easy.