power windows

I fitted power windows to my car years ago with 2 relays in each door, i have now rebuilt the car and want to do it more properly.

I assume i should have some kind of load sensing device wired in to stop the motor when it reaches all the way up and all the way down, i would also like to add one touch up or down.

first of all, is there something i should be using to cut out the motor when it reaches all the way up or all the way down?

2nd were is a easy cheap place to get a module to make the windows one touch?

could i just use some factory module from a car, i am in australia btw and the car is a 59 holden, 10 years older than the 1st holden with a power window option.

i need some quick answers becuase i am about to fit up the doors for good and need to know how much wire to feed through the doors, space is tight in these jambs so i need to keep wire looms as thin as possible.

I had these motors fittid up nice, dont see the sense in buying a kit just to get some kind of load cut out to stop the motors when the window is all the way up.

i am using 59 chev switches to get a factory fitted look so i dont need the ugly plastic switches that come with the kit either.

relays were in there becuase before i had smaller switches and i wired the drivers side up to boot release on the old imobiliser to put up the drivers window by holding both buttons down on the remote till the window was up.

i could leave out the relays as the chevy switches will take the current but i only had 1 thick wire and 2 thin wires to each slave door keeping the looms thin, if i go without the relays i need 3 thick wires, combined with the central locking and speaker wires it makes the loom a bit thick and there is only 6-7 mm of gap between the door and the jamb when the door is closed.

on the drivers door i had to put in 2 holes for the loom but i want to avoid that on the other doors.

that just crossed my mind, the old switches were on on with 6 legs each.