multiple brake questions,I'm gittin a headache

[poppa]

I am going from the drums all around to disc in front,original Bendix stuff.

First , I bolted the Bendix booster to the firewall,now it seems the pushrod is too long. I can't get the linkage pivot to bolt up. Should I have to "work" to get it hooked up? By that I mean push in the push rod to hook it up. Also,it hits where the red circle is (I think I circled the wrong side but you get the idea).Is the push rod length different between the Midland/Ross and the Bendix?? Could I have the wrong booster?

Second , I was going to bolt up the prop valve and now I don't think I have the right one (pic below).The mounting bracket seems too long??

Third , I think the safety valve is correct?

[poppa]

Here's the prop valve I have. Headache is gettin bigger.....

[Musicman]

The top photo shows what looks to be a Combination Valve, although I can't actually tell by looking at that particular image.
The photo in the middle is of a Distribution Block with a Safety switch.
The critter in the bottom image is not a Proportioning Valve, that's a Metering Valve... you can tell by the little plunger pin sticking out of it.

Proportioning Valve - A proportioning valve restricts the amount pressure to the rear of a brake system under heavier braking conditions to prevent the rear brakes from locking up.

Distribution Block - This block is simply a place to run brake lines to and split the front and rear systems.  It does not proportion or meter the brake fluid coming from the master cylinder. 

Metering Valve - A metering block is found on vehicles with front disc brakes and rear drums.  This valve holds off any fluid from getting through to the front brakes up to a certain pressure. This causes the rear drum brakes to engage just slightly before the front, which results in more level stopping.

Combination Valve- Combination valves combine all three of the above blocks into one.

[poppa]

So with the one mounted on the frame ,I don't need any of the others.correct? Not saying your wrong but,the pin doesn't move. I thought it was for an electrical connection.