#2
sure you have a 5 way switch and then you can do push pulls and mini toggles. if your rg has a pick guard then its really easy to drill and just add a few switches or 10 switches
Prs se Holcomb is the answer
#4
Regular push/pulls are DPDT, while the S1 is 4PDT.  You want a 4PDT on-on mini toggle.