Will someone please look at this parts list from Fastlane andmake sure it's all there

[WANT '71 280SEL]

Timing Chain Tensioner A5110-15408 $64.13 $0.00 $64.13
Timing Guide Rail A5040-15411 $25.87 $0.00 $25.87
Timing Guide Rail A5040-15416 $3.00 $0.00 $9.00
Timing Chain A5100-11943 $78.17 $0.00 $78.17
Valve Cover Gasket A8030-25375 $6.39 $0.00 $6.39
Valve Cover Gasket A8030-25376 $6.39 $0.00 $6.39
Timing Rail Pivot Pin A5041-73179 $6.98 $0.00 $6.98
Valve Cover Seal Washer A8033-83101 $0.27 $0.00 $2.16
V-Belt W1002-33142 $4.70 $0.00 $4.70
V-Belt W1002-33200 $5.61 $0.00 $5.61
V-Belt W1002-33075 $4.10 $0.00 $4.10
V-Belt W1002-33106 $3.64 $0.00 $3.64
Spark Plug F1000-37568 $1.51 $0.00 $1.51
Timing Rail Lining A5049-110366 $3.16 $0.00 $3.16

I know it says only 1 spark plug, but i can't get it to update those. I can update the numbers on everything else, but when I have 8 and then push update, it just flashes back to 1. Anyways, I will be doing all new belts and spark plugs obviously when I do the rails and chain or approximately at the asme time.

I am mainly interested about the "timing rail lining" and the "timing rail pivot pin". Do I want to but multiple "timing rail pivot pins?" I didn't know if it was just the one that the pivot rail pivots on, or if they are the pins that hold all the rails to the head? I may be confusing you, but I just want to have every part there when I do this becasue it's being done in one day. How long do you think it will take to do?

I will be doing it with my uncle who's been working on cars for like 40 years, but of course he's one of those older fashion guys who could tear a big-block down and rebuild it with his eyes closed. We should have most of the tools but I don't know if he would have thin-walled sockets? that would work in places like the p/s pump mounting bracket. Are there any other tools I need other than just regular box-end/combination wrenches and socket wrenches? They will of course be metric and I think I've figured out how to make/use the pin-puller. So are there any awkward sockets I need or extreme sizes over 27mm?
Thanks
David