Yes, the 135 mm S-Planar is good. It's the C-version of the 135 mm
Makro-Planar.
Like you said, when used on the bellows, you can focus from infinity down to
1:1.

However...
The lens itself has no focussing mount (so no, it will not "focus from 1:1
to infinity" ;-)), and has to be used on either bellows or variable
extension tube.
While the tube is o.k. (but rather hard to find), always having to use the
bellows becomes a pain in the posterior part rather rapidly.
Any alternative (and there are a few) quickly becomes very much more
desirable.

One excellent alternative is the 120 mm S-Planar of 120 mm Maro-Planar.
It does not 'do' infinity all the way to 1:1 unaided (only goes to 1:4.5;
with 32 mm tube to 1:2) , but is light, easy to handle, and (in f/4
Makro-Planar version) one stop faster than the rather slow f/5.6.

Another alternative would be to use the 80 mm Planar with a set of tubes.

Or even a 150 mm Sonnar with tubes.

You see that all alternatives involve adding extension tubes.
That, i guess, is just the way things are. It may not be as convenient as a
lens that has a do-it-all-mount, but there simply is no such lens.
(Unless, of course, you really are prepared to always use that awkward
bellows thing. ;-))

It's a great lens.

I use the 120 with tubes!! Considering that hassy tubes are getting rather
inexpensive in comparison to a few years ago I suggest that route. I use the
older black T* S-Planar version. A Fantastic lens!! The 120 works great for
a portrait lens as well and yes I also have a 150 CFi for a tighter
compression as well as a 250 mm Chrome.
J Burke