painless wiring help please !

[crankshaft]

Hello gang !

So I'm in the process of wiring my 1965 chevelle ss. its a 327 , with a th350 trans. floor shifter, no tilt, ac removed. Im haveing issues since I started this project as my fine who was suppose to do the job backed out.its a painless wiring universal kit ( dont ask why ) My first question is.. I ordered a signal switch from dons east coast restoration,,, its a 7 wire connector, but the orignal other end (female) is a 8 wire connector ???

My wiper switch is a 3 pin connector , and my wiper motor is a 2 pin connector ( without the washer pump I pretty sure ) how would I connect this ?

my driver's side dash has a small 1/2 hole ?? anyone know whats it for ???

thanks for any help!