Lots of thoughts, Frank. The first is a question. What is your main goal? It appears that it is an overall level of cardio and strength fitness. Going off of that, my basic recommendation to you would be to shorten the rest between sets. The three minute rule is a general rule of thumb for strength gain. For you, warm up, do your work reps and recoup just enough to complete another set.
Focus on compound movements - squat, deadlift, bench and oh press movements as you can with your equipment. I'd almost recommend ditching your equipment and go with some other stuff. You can use a wheelbarrow loaded with sand or dirt and move it. Grab an axe or sledge and swing it. Get some sand bags and play with them.
Hell, for $300, but a prowler. You'll get stronger and in really good shape.
Let us know your goals and we can adjust.
My goals are just what you said; cardio and strength. Sorry to say I can't do squats, dl etc. because of my back, so i'm forced to do leg exts., leg curls, and using a band with ankle cuffs pulling and pushing 4 directions. Upper is bp, sp, lat pulls, rowing, gm, very light rotator cuffs. With more time I do flys,curls, laterals.
Which prowler were you referring to? I looked it up and they have stations, treadmills etc. I paid 300 for my pos weider max.