Chairlifts are actually really cool. The ones that aren't detachable (back home anyway) are not really solidly in the cable. There is this little machine that pulls the cable together to make a little "basket" then the chair/clip is just put in there, then the basket is let out and it pinches it. And yeah, the cable ends are spliced together, to the ends of the cables sorta overlap for a pretty far length.
And I think you would get in trouble building a HUGE kicker right beneath a chair lift.... and sliding it wouldn't be cool, at all.