Cannondale F1000 Caad 4 revival project - Headshok Fatty D Service / Part Repair

HD136/

Tool, HeadShok outer cap pin
cannondalespares.com/Cannonda­le-Headshok-Outer-Cap-Pin-Tool--HD136/pr­oduct_detail/3-40526

Pinspanner.

HDTL149/
Tool, HeadShok fork installation
cannondaleexperts.com/Cannond­ale-Headshok-Fork-Installation-Tool--HDT­L149_p_4276.html
Not mentioned on the "diy" lists, do I really need it?

Not needed - correctly sized pipe will do.

KT016/
Tool, HeadShok bearing reset
cannondalespares.com/Cannonda­le-Headshok-Bearing-Reset-Tool--KT016/pr­oduct_detail/3-40531
Sexy looking, but do I really need it?

Not needed.

KT020/
Kit, Lefty Steerer install (also for Fattys)
cannondaleexperts.com/Cannond­ale-Ernie-Lefty-Steerer-Tube-Install-Too­l--KT020_p_125.html
@Howard is this where a thick pipe will do? What diameter do I need to go for? :D

Yes, chunky PVC pipe. Take the lockout dial off. Diameter needs to be roughly the same as the steerer. Thickness - thicker the better, but not so thick it will transmit force through whatever gubbins the lockout dial / nob attaches to.

KH031/
Super castle tool
cannondaleexperts.com/Cannond­ale-Super-Castle-Lefty-Headshok-Cartridg­e-Removal-Tool--KH031_p_101.html
"When removing the Lefty cartridge, make sure you have removed the preload air pressure from the fork. Don't worry, you only need to get punched in the face once with a cartridge to remember forever."
LOL
OK no way around this. But some people say that the newer castle tool doesn't fit old forks, it's too long! So I may have to hack this or get a used one.

You will need this.

Stuffs I can borrow if needed: Headset press (not for 1.5" forks though hrmpf)

You won't need a headset press - the cups should be fine.