Power Brakes With Manual Tranny?

I don't think it matters, really. As long as you have the dual MC, and proportioning valve, you should be good to go.

That is for 4 wheel disc brakes and the disc MC won't work properly with drum brakes. You will have a car that will be even more unsafe than using the jelly jar type MC.

Initially you would need a MC for 4 wheel drum brakes which has additional valving built in the MC (residual valve(s.) The residual valve keeps a slight pressure in the drum system which helps keep wheels springs located and prevents air from entering the hydraulic system if there is any type of a leak. Also without the residual valve the pedal will be lower and spongy. A disc brake system does not use a residual valve. If a drum MC is installed on a disc setup, the brakes remain locked up for a long period (several seconds or even minutes) after the pedal is pushed.

Since the power booster doesn't care whether drum or disc, install the new booster that you posted using the jelly jar MC for now or source a 4 wheel drum MC for temporary use until you swap to discs. Or find a kit for 4 wheel drum MC that you can use now and swap the MC later for the disc one.

Don't know why they wouldn't work. Just be sure that all 4 drums are included.

Check out CSRP. Dennis is very helpful with his brake kits. Dan at Chockostang is another resource.