Need Help!- Home switch selection.

[Drools]

I have a number of switches I can use as home switches on my new build.
Seen http://www.cnczone.com/forums/cnc_wo...thk_cncrp.html
Since the machine is in the garage where the temperature fluctuates quite a bit I'm wondering which ones would work the best.
I picked up 3 AB 871c-a5n18-r3, they look like quite nice units but I do not have the wiring harness that comes with the unit. Maybe that is why I got them so cheaply. These are probably the best but the 40VAC might be a problem.
I also have quite a few of the hall switches that Roman uses in his post http://www.cnczone.com/forums/open_s...made_easy.html
Finally I have some optical NO Honeywell switches SENSOR DIGITAL SLOT OPTOSCHMITT - HOA6991-T55 My current machine uses optical switches which seem to be working very well. These ones are not exactly the same but close.
Thanks for the input.

[ger21]

I like my hall switches from Roman's thread, and am making a set for my new router as well.

Haven't used any others, but I don't know how they could work any better.