AND THE HARD PART IS DONE!!! Kinda...
Tricky thing about the 4th gen Econoline if you want a manual trans is that they never came with one, and no one makes a kit so you've got to custom fabricobble everything yourself.
Only a few other people online have been hard-headed enough to try it, and now I can tell you why: it's a PITA trying to fit everything in the footwell! I do not regret being hardheaded though, turned out great and now all of my vehicles will be stick and three pedals :)
Having no luck finding any good tutorials anywhere else, I'll try and be as detailed as possible here for anyone who wants to try
First, I started with the two pedal assemblies from earlier (old ford truck and another econoline). After a lot of mock up and finagling I found out that YJ spring hanger bushings (the metal bit) will fit right in between an econoline brake pedal assembly bracket. So I ground out the old pedal pivot axle and, suprise suprise, the bolt fits too:
This makes the basis of two swing pivot things. I then heavily modified the two pedals from the truck pedal assembly to get the pedals in the right spot. Brake pedal was shortened and brought forward to be a little less than 1" closer to the gas pedal than the original brake pedal was. I also had to grind out the stud, pop it out and flip it so it's the right side. The clutch pedal was cut just above the curve and flipped around, plus cut down at the top so it matched the length of the brake pedal. I also cut some expanded sheet metal and welded it on for texture:
From here I measured how far away the stud was from the face of the pedal assembly on my van's current brake setup. That let me set the orientation of the pedals to I could weld the clutch throw arm parallel to the rear face of the bracket. To come out right in the correct spot the pivot arm needed to line up directly over the brake pedal arm. Finally paint and assembly:
Now you can probably tell that I'm putting in a reverse clutch master cylinder. I have no idea what this cylinder is out of, I just picked one at the auto parts store that looked like it'd work. It'll mount to the Dash under-skelleton where the center spike of kill-you-in-a-crash used to be...
And I mean that, under the dash right under the steering wheel is a sharpened spike bolted in an orientation facing your bollocks. There seems to be no purpose to it, and it's just a spike...
The bottom mounding bolt goes straight through that metal structure. I did have to weld a bracket for the top bolt of the master cylinder but light was getting dim and I couldn't get a good picture. I'll add more tomorrow.
However, test drove the new brake/clutch pedal assembly and it worked out great. I'm even still able to keep the electrical connection box fixed to it's stock location, clipped onto the side of the pedal assembly bracket. Clutch goes all the way down but it does slightly scrape the plastic liner, importantly though, not the metal underneath.
I do still need to add a return spring on the clutch pedal but for now I'm saying the job is done. Hopefully everything else will be much less custom or tight fitting
=========================================================================================================================================
Addendum, needed to change the clutch master cylinder.
The Ford "all in one" package lines were held in by rolled pins, rather than butchering it to get it to work with my original Master Cylinder I just modded my bracket to accept the Ford factory stuff: