I was just down there a month ago and shot from the bridge that you speak of. It is about a 10 minute walk from T1 along the main road to the overpass where you can take a photo such as this, mainly in the afternoon hours as the sun swings around. I found the light good, albeit more off the nose, after 3pm when I went but as the sun angle changes through the springtime, it should actually be more favorable. There is enough room for about 5 people to occupy the edge of the fenceline on the bridge, where you'll see you will have no problem poking a lens through (the fence is full of gaping holes).
There is one unfortunate security camera/pole that precludes the side-on shot to occur along the taxiway I'm afraid which answered my question as to why these shots never appeared, but you can expect to get a shot like this:
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Photo © André Du-pont (Mexico Air Spotters)
The Interjet A320s, Magni 733s and some Click Fk100s will come along a side taxiway which will have the best light.
Lens wise, a short zoom 28-105mm will work for a shot like the B717 above, and that was for slide shooting so digitally, you'd be fine with a 1.5 ratio. Anything larger will work for planes on runway 05L though.
Hope that helps, good luck! I plan to return again in April when Volaris hopefully is flying there to catch up on some more Airbus frames for my slide collection.