there's just not any one else around there, not long after I made this post a Org member logged on and helped me, they used a higher level character, and just whacked them once. Took us almost 2 hours, but we finally got what I was looking for. during that time we could had started 4 more pads, and 2 of which would of just needed that same one missing piece
Ok that was the good news. I was all happy and very sleepy, but I was going to grab both pads before I went to bed, first went to the Clan, and before I went to start the second part of the Pad quest, I was going to put together the second pad to be assembled for the Omni dude. But for some reason I could not combine the first part

. . I thought maybe they changed it, and now you can only have one set, I didn't give up tried it again, still message shows wrong item . . "But I have everything ?".
So I looked what I had again, . . . DOH!! . . the Scrap of Notum was not a Scrap of Notum, but just a Notun chip

you know how many of those I didn't grab and left there because I thought I already had it ?
Well guess I'll be going back to the Junk Yard outside of Rome again
The other day was talking with a friend in the Game, I mentioned need another out here looking, seems the drop rate increases when more are here. They mentioned the drop rate increases with the Kill rate, the more or faster they are killed, then the drop rate increase.
With just me killing them, and no one else around it does feel like there is no such thing as a drop

.
Yeah these areas are not the same, err your not going to produce the same kinda drop rate. the Junk Yard outside Rome was good because there are more mobs there in a smaller area. My second best location was the Crash site outside of Newland City. The Ruins there was a wait for a mob to spawn, so got nothing there. The Mines south of ToTW plenty of mobs but they are spaced far apart. Same for Outside of Athens the Junk Yard there plenty of Mobs but got nothing and lots of running just to get to the next one.
I'm going to say I had 12+ hours looking for all the parts, and in the first 4, had everything but one Times 2. (actually higher but cannot keep duplicates, so actual how many more is a guessimate). So that was 8 hours just for one Part. But seeing how much faster it is when you have help and/or others doing the same in the same area, that time could had been a lot less, a Whole lot less
Oh I found that other Mob I was mentioning about, they were A-500 Elites, I spent 45 minutes there and was getting nothing. They are in Omni Forest. Since there are only 4 of them, I had to wait for them to spawn, very slow.