5.2l Magnum V8, conversion van, 2wd, auto, 100k, ABS, front disc brakes, rear drum brakes

Hi all,

I'm planning to bleed the brakes for the first time on our family's road trip van. In the Haynes manual, it lists the following order to bleed the brakes: Combination Valve, Rear anti-lock valve, Front anti-lock valve, Left rear wheel, Right rear wheel, Right front wheel, Left front wheel.

1. How important is it to bleed the combo and rear/front anti-lock valves? I ask as the front anti-lock valve is located under the battery tray in a tricky (pain in the butt) position to access.
2. I have a Motiv brake bleeder kit and adapter, and this era of Dodge has 2 caps on the master cylinder reservoir. Does it matter which cap I draw the old fluid from, and which cap I use the adapter to pump new fluid into? (I cannot tell if the both caps just share an undivided reservior as the whole case is black and not transparent)
3. The combo and front anti-lock valve units both have 2 bleeder screws each, 1 front and 1 back on the combo unit, and the front anti-lock valve have the bleeders nearly side by side. Each bleeder screw appears to have a 21-22mm 6pt flange that I can get a wrench onto. Do I need to crack and bleed each bleeder, or just 1 of them per unit is fine?
4. I have not bled bleeders of this size and configuration before, is there any extra care that needs to be taken like using a vacuum bleeder on them, or are they similar to the caliper and drum bleeder screws?

I have taken pictures and added notes to them, but I do not see a way to upload to the forum. Let me know if I need to post pictures to help visualize what I'm working on.

Thank you in advance.