Modern Waltz. 28 bars a minute. will equall 1 second each beat. As there are six half beats. in one bar of music. And six moves. Do we count it this way. 1/2 sec. to step. 1/2 sec to draw the foot up and turn. 1/2 to put the foot to the side. 1/2 sec to draw the feet together.Now I have 1 second or 2 1/2's to rise and fall. Can it be any other way and still comply with the technique book

Hi Anna
At 30 bars per minute and 3 beats to the bar, you have 90 beats per minute, so each beat is only 2/3 second. It'll be very s;lightly longer of course at 28 Bars per minute.
The rest of your question is more complex. I think you have it pretty well correct, though many would argue with some of the details.
For example, the technique book says "lower end of 3" (this would be for 1-2-3 natural turn, for example)without saying exactly when this is. Perhaps it's as well it's not too tightly specified. Most would lower on 3&. But again, the technique book only refers to foot lowering and not body lowering (am i right on this?)