Polyjuice Potion question

[smtopliff]

No: HPFGUIDX 88451

I could not find specific discussion regarding the Polyjuice Potion 
that Barty Crouch Jr. was using although I thought there had been--
please enlighten me:


There is some ambiguity regarding the timeline prior to Moody's 
attack by Crouch at the beginning of GOF (later revealed at the end 
during Crouch Jr's confession) but if it takes a month or more to 
brew the potion how was there time to lay out this whole plan?  We 
know that the attack on Moody was August 31st, the night before start 
of term, and we know that the attack on Frank Bryce was mid-August, 
based on the vision that Harry had in Chapter One of GOF, so my 
question then is this:  when did Voldemort approach Barty Crouch 
Jr.?  And who brewed the Polyjuice Potion and where?  Let me continue 
to think as I write...

Let's see...Bertha was missing at that point for over a month based 
on what Percy said at the dinner table prior the the group going to 
the world cup...that means she was missing from mid-July or 
thereabouts...Hmmm.    Voldemort got the info. about the World Cup 
from Bertha, he had the information up to six weeks before the start 
of term, so he or someone had time to brew the potion.  How did he 
know that Moody was going to be the new DADA teacher?  I think he 
would have considered it poetic justice to then replace him with 
Crouch given all that he did to the Death Eaters as an Auror, just as 
he had to get to Harry Potter versus another for the blood he took 
to "resurrect" himself.  Again, his vanity and arrogance lead him to 
take risks much like Harry Potter tries to take care of things 'his 
way' when faced with adversity--similar traits but the double-edged 
sword variety.  So...who brewed the potion?

Was it Ludo Bagman?  How does he fit into all of this?  He showed up 
late where the Ministry of Magic Wizards were in the forest in GOF 
after Crouch Jr. sent the skull and snake symbol into the sky, but he 
did not know what was going on, nor did the Ministry employees 
understand where he had been.   He disappeared from the forest 
originally when the three (RHH) informed him that people were fleeing 
from the Death Eaters but obviously did not participate in stopping 
the Death Eaters from mistreating the Muggles--was he trying to find 
out WHY they were taking such a risk out in the open surrounded by 
such security (as if he is one of them) or is he just an Oaf?  And 
was he appearing where the symbol had been cast from in the forest in 
search of other Death Eaters(or perhaps Voldemort himself?), and was 
then surprised to find Ministry employees there instead?  Did 
Voldemort or Crouch state that the symbol was a call to his Death 
Eaters?  

A few unanswered questions I would like answered.  do I have to wait 
for book six?  P.S.  Any clues from anyone the progress of Book Six?  
Am I obsessing?  Am I AM I?!?  (is that such a bad thing, really?)