Final Lowering Questions

[70 Pickup]

Alrighty, I know these questions have been asked 100+ times, but not in one post. Please don't flame for the search thing, I have but no one wants the same drop that I am wanting.

Here is a list, I want to know if I am missing anything, or if I should do something different. This is all for a 70 chevy with 72 frame and suspension.

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1) Front Bag kit from Air Ride Tech.
2) BellTech 3" Lowering Spindles
3) Rear Bag Kit from Air Ride Tech.
4) Rear Shock Relocators
5) Panhard Rod (track bar, as some people call it)
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Alright couple questions now:
1) What shocks for the best ride?
2) What length of Adjustable Panhard Rod? Classic has two differnt lengths.
3) Do I need to notch the frame? Some people said yes, but it was never listed in other post of "what should I do first?".
4) Do the tanks and everything come with the kits? If not, what do I need to get.

Thanks
daniel