4-way lever on HSS stratocaster

[Aly68]

Hi, guys !
I'm new here and I have question.
I have HSS stratocaster and never mind for middle single sound anyway so I decided to put 4way lever instead of 5way.
But, there is the problem : for eavening high frequencies between humb and singles, I used scheme from Duncan (in attachment) where 500 K resistor is added on singles in position 2-5 (master volume pot is 500 K) and, since 5-way and 4-way are so different switches, I don't know how to adapt schematics.
With 4way switch now I have bridge-bridge/middle-middle/neck-neck combo and thats satisfies me perfectly (schematics in attachment).
Also, for humb I use DPDT 3way on-on-on microswitch but would like to replace it with something sturdier ( metal switch lever like VH music man or something).
I have found on e-bay the same switch with that kind of lever but the body and contacts also look flimsy. But then I have found 4PDT on-on-on but with 8 contacts. Is someaone have experience with those kind of switches and can they replace and do what DPDT 3way on-on-on do ?
Thanks to every reply !