Tweeter Capacitor Upgrade (Coincident PREs)

Geta2ay from plastics like a Mundorf s ownedtheir Best Silver Gold oil supremes several times . TheJupiter Copper foil 
muc more natural and meaty once you give them 300 hours,
and a Duelund. Silver foil ,oil.01 Bypass cap really opens the top up . Solen is junk,  depending on budget .
go to humblehomemadehifi capacitor test.   A solid A recommendation I usethem myself in my speakers .whileyou are 
at it rebuild the whole Xover austral bloom uses Nothing 
remotelyhigh quality .i owned several  amps speakersall economy 
parts .I modded them  myself , a Huge difference , and for suerewire them , I just used VH Audio New AWG 21 for the tweeter, awg15  forthe other drivers a Litz ssmall diameter 
OCC - 0 crystalCopper verythinned foamed Teflon dielectric  
fantastic wire . He sells a awg 12 and awg 11 forLoudspeaker cables, and use Copper get rid of the junk brass ,on the terminals 
not natural stall I changed every connection throughout to copper
at lesst a 10% improvement . I used the exsctwiring for my amp-preamp, Loudspeakers also. The whole system .time consuming and maybe $1500 in wire but the results are substantial.

i think isreal uses his top of the line statement cabling inside throughout for his PRE i dont think youd need to upgrade the wiring inside. dont know about the caps.

Here is my thinking:

4.7uF :
Clarity CMR : $54
Jupiter CF: $265

0.1uF:
Jupiter CF: $63

Audyn : $20 (Parts Express)

So somewhere in there I think the OP can find a fine solution. :)

Thanks for the recommendations everyone.

@justanotherhifiguy Isreal states that they use Mundorf in current models of the PRE, but my pair (I purchased used) just have Solens.  The frankenstein amps also have solens throughout... although to be honest I tried replacing with Duelund and didn't like the result.  

@erik_squires Lots to think about in there... I'm very torn.

@audioman58 And fortunately there's nothing else really to change.  The PREs only have that one 4.7uF capacitor on the tweeter.  The midrange is directly wired to the binding posts and the the bass just has a single inductor coil.